diff options
Diffstat (limited to 'tiff/libtiff')
67 files changed, 35499 insertions, 0 deletions
diff --git a/tiff/libtiff/Makefile.am b/tiff/libtiff/Makefile.am new file mode 100644 index 0000000..b918bb9 --- /dev/null +++ b/tiff/libtiff/Makefile.am @@ -0,0 +1,143 @@ +# Tag Image File Format (TIFF) Software +# +# Copyright (C) 2004, Andrey Kiselev <dron@ak4719.spb.edu> +# +# Permission to use, copy, modify, distribute, and sell this software and +# its documentation for any purpose is hereby granted without fee, provided +# that (i) the above copyright notices and this permission notice appear in +# all copies of the software and related documentation, and (ii) the names of +# Sam Leffler and Silicon Graphics may not be used in any advertising or +# publicity relating to the software without the specific, prior written +# permission of Sam Leffler and Silicon Graphics. +# +# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, +# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY +# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. +# +# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR +# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, +# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF +# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +# OF THIS SOFTWARE. + +# Process this file with automake to produce Makefile.in. + +LIBPORT = $(top_builddir)/port/libport.la +LIBTIFF = $(top_builddir)/libtiff/libtiff.la +libtiffincludedir = $(includedir) + +EXTRA_DIST = Makefile.vc \ + SConstruct \ + tif_config.h-vms \ + tif_config.vc.h \ + tif_config.wince.h \ + tiffconf.vc.h \ + tiffconf.wince.h \ + libtiff.def \ + $(EXTRA_SRCS) + +libtiffinclude_HEADERS = \ + tiff.h \ + tiffio.h \ + tiffvers.h + +if HAVE_CXX +libtiffinclude_HEADERS += tiffio.hxx +endif + +noinst_HEADERS = \ + t4.h \ + tif_dir.h \ + tif_predict.h \ + tiffiop.h \ + uvcode.h + +nodist_libtiffinclude_HEADERS = \ + tiffconf.h + +libtiff_la_SOURCES = \ + tif_aux.c \ + tif_close.c \ + tif_codec.c \ + tif_color.c \ + tif_compress.c \ + tif_dir.c \ + tif_dirinfo.c \ + tif_dirread.c \ + tif_dirwrite.c \ + tif_dumpmode.c \ + tif_error.c \ + tif_extension.c \ + tif_fax3.c \ + tif_fax3sm.c \ + tif_flush.c \ + tif_getimage.c \ + tif_jbig.c \ + tif_jpeg.c \ + tif_luv.c \ + tif_lzw.c \ + tif_next.c \ + tif_ojpeg.c \ + tif_open.c \ + tif_packbits.c \ + tif_pixarlog.c \ + tif_predict.c \ + tif_print.c \ + tif_read.c \ + tif_strip.c \ + tif_swab.c \ + tif_thunder.c \ + tif_tile.c \ + tif_unix.c \ + tif_version.c \ + tif_warning.c \ + tif_write.c \ + tif_zip.c + +libtiffxx_la_SOURCES = \ + tif_stream.cxx + +EXTRA_SRCS = \ + tif_acorn.c \ + tif_apple.c \ + tif_atari.c \ + tif_msdos.c \ + tif_next.c \ + tif_win3.c \ + tif_win32.c + +lib_LTLIBRARIES = libtiff.la +if HAVE_CXX +lib_LTLIBRARIES += libtiffxx.la +endif + +libtiff_la_LDFLAGS = \ + -no-undefined \ + -version-number $(LIBTIFF_VERSION_INFO) +if HAVE_RPATH +libtiff_la_LDFLAGS += $(LIBDIR) +endif +libtiff_la_LIBADD = $(LIBPORT) + +libtiffxx_la_LDFLAGS = \ + -no-undefined \ + -version-number $(LIBTIFF_VERSION_INFO) +if HAVE_RPATH +libtiffxx_la_LDFLAGS += $(LIBDIR) +endif +libtiffxx_la_LIBADD = $(LIBTIFF) $(LIBPORT) +libtiffxx_la_DEPENDENCIES = libtiff.la + +# +# The finite state machine tables used by the G3/G4 decoders +# are generated by the mkg3states program. On systems without +# make these rules have to be manually carried out. +# +noinst_PROGRAMS = mkg3states +mkg3states_SOURCES = mkg3states.c tif_fax3.h +mkg3states_LDADD = $(LIBPORT) + +faxtable: mkg3states + (rm -f tif_fax3sm.c && ./mkg3states -b -c const tif_fax3sm.c) + diff --git a/tiff/libtiff/Makefile.in b/tiff/libtiff/Makefile.in new file mode 100644 index 0000000..52b10e6 --- /dev/null +++ b/tiff/libtiff/Makefile.in @@ -0,0 +1,887 @@ +# Makefile.in generated by automake 1.11 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# Tag Image File Format (TIFF) Software +# +# Copyright (C) 2004, Andrey Kiselev <dron@ak4719.spb.edu> +# +# Permission to use, copy, modify, distribute, and sell this software and +# its documentation for any purpose is hereby granted without fee, provided +# that (i) the above copyright notices and this permission notice appear in +# all copies of the software and related documentation, and (ii) the names of +# Sam Leffler and Silicon Graphics may not be used in any advertising or +# publicity relating to the software without the specific, prior written +# permission of Sam Leffler and Silicon Graphics. +# +# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, +# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY +# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. +# +# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR +# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, +# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF +# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +# OF THIS SOFTWARE. + +# Process this file with automake to produce Makefile.in. + + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +target_triplet 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distclean-libtool distclean-tags distdir dvi dvi-am html \ + html-am info info-am install install-am install-data \ + install-data-am install-dvi install-dvi-am install-exec \ + install-exec-am install-html install-html-am install-info \ + install-info-am install-libLTLIBRARIES \ + install-libtiffincludeHEADERS install-man \ + install-nodist_libtiffincludeHEADERS install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags uninstall uninstall-am uninstall-libLTLIBRARIES \ + uninstall-libtiffincludeHEADERS \ + uninstall-nodist_libtiffincludeHEADERS + + +faxtable: mkg3states + (rm -f tif_fax3sm.c && ./mkg3states -b -c const tif_fax3sm.c) + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/tiff/libtiff/Makefile.vc b/tiff/libtiff/Makefile.vc new file mode 100644 index 0000000..96e8289 --- /dev/null +++ b/tiff/libtiff/Makefile.vc @@ -0,0 +1,102 @@ +# $Id: Makefile.vc,v 1.17.2.2 2007/07/18 14:30:05 dron Exp $ +# +# Copyright (C) 2004, Andrey Kiselev <dron@ak4719.spb.edu> +# +# Permission to use, copy, modify, distribute, and sell this software and +# its documentation for any purpose is hereby granted without fee, provided +# that (i) the above copyright notices and this permission notice appear in +# all copies of the software and related documentation, and (ii) the names of +# Sam Leffler and Silicon Graphics may not be used in any advertising or +# publicity relating to the software without the specific, prior written +# permission of Sam Leffler and Silicon Graphics. +# +# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, +# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY +# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. +# +# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR +# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, +# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF +# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +# OF THIS SOFTWARE. +# +# Makefile for MS Visual C and Watcom C compilers. +# +# To build: +# C:\libtiff\libtiff> nmake /f makefile.vc all +# + +!INCLUDE ..\nmake.opt + +INCL = -I. $(JPEG_INCLUDE) $(ZLIB_INCLUDE) $(JBIG_INCLUDE) + +!IFDEF USE_WIN_CRT_LIB +OBJ_SYSDEP_MODULE = tif_unix.obj +!ELSE +OBJ_SYSDEP_MODULE = tif_win32.obj +!ENDIF + +OBJ = \ + tif_aux.obj \ + tif_close.obj \ + tif_codec.obj \ + tif_color.obj \ + tif_compress.obj \ + tif_dir.obj \ + tif_dirinfo.obj \ + tif_dirread.obj \ + tif_dirwrite.obj \ + tif_dumpmode.obj \ + tif_error.obj \ + tif_extension.obj \ + tif_fax3.obj \ + tif_fax3sm.obj \ + tif_getimage.obj \ + tif_jbig.obj \ + tif_jpeg.obj \ + tif_ojpeg.obj \ + tif_flush.obj \ + tif_luv.obj \ + tif_lzw.obj \ + tif_next.obj \ + tif_open.obj \ + tif_packbits.obj \ + tif_pixarlog.obj \ + tif_predict.obj \ + tif_print.obj \ + tif_read.obj \ + tif_stream.obj \ + tif_swab.obj \ + tif_strip.obj \ + tif_thunder.obj \ + tif_tile.obj \ + tif_version.obj \ + tif_warning.obj \ + tif_write.obj \ + tif_zip.obj \ + tif_jbig.obj \ + $(OBJ_SYSDEP_MODULE) + +all: libtiff.lib $(DLLNAME) + +tif_config.h: tif_config.vc.h + copy tif_config.vc.h tif_config.h + +tiffconf.h: tiffconf.vc.h + copy tiffconf.vc.h tiffconf.h + +libtiff.lib: tif_config.h tiffconf.h $(OBJ) + $(AR) /out:libtiff.lib $(OBJ) $(LIBS) + +$(DLLNAME): tif_config.h tiffconf.h libtiff.def $(OBJ) + $(LD) /debug /dll /def:libtiff.def /out:$(DLLNAME) \ + /implib:libtiff_i.lib $(OBJ) $(LIBS) + +clean: + -del tif_config.h tiffconf.h + -del *.obj + -del *.lib + -del *.dll + -del *.exe + -del *.pdb diff --git a/tiff/libtiff/SConstruct b/tiff/libtiff/SConstruct new file mode 100644 index 0000000..cb6a7cc --- /dev/null +++ b/tiff/libtiff/SConstruct @@ -0,0 +1,73 @@ +# $Id: SConstruct,v 1.4 2007/02/24 15:03:50 dron Exp $ + +# Tag Image File Format (TIFF) Software +# +# Copyright (C) 2005, Andrey Kiselev <dron@ak4719.spb.edu> +# +# Permission to use, copy, modify, distribute, and sell this software and +# its documentation for any purpose is hereby granted without fee, provided +# that (i) the above copyright notices and this permission notice appear in +# all copies of the software and related documentation, and (ii) the names of +# Sam Leffler and Silicon Graphics may not be used in any advertising or +# publicity relating to the software without the specific, prior written +# permission of Sam Leffler and Silicon Graphics. +# +# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, +# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY +# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. +# +# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR +# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, +# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF +# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE +# OF THIS SOFTWARE. + +# This file contains rules to build software with the SCons tool +# (see the http://www.scons.org/ for details on SCons). + +# Import globally defined options +Import([ 'env', 'idir_lib' ]) + +SRCS = [ \ + 'tif_aux.c', \ + 'tif_close.c', \ + 'tif_codec.c', \ + 'tif_color.c', \ + 'tif_compress.c', \ + 'tif_dir.c', \ + 'tif_dirinfo.c', \ + 'tif_dirread.c', \ + 'tif_dirwrite.c', \ + 'tif_dumpmode.c', \ + 'tif_error.c', \ + 'tif_extension.c', \ + 'tif_fax3.c', \ + 'tif_fax3sm.c', \ + 'tif_flush.c', \ + 'tif_getimage.c', \ + 'tif_jbig.c', \ + 'tif_jpeg.c', \ + 'tif_luv.c', \ + 'tif_lzw.c', \ + 'tif_next.c', \ + 'tif_ojpeg.c', \ + 'tif_open.c', \ + 'tif_packbits.c', \ + 'tif_pixarlog.c', \ + 'tif_predict.c', \ + 'tif_print.c', \ + 'tif_read.c', \ + 'tif_strip.c', \ + 'tif_swab.c', \ + 'tif_thunder.c', \ + 'tif_tile.c', \ + 'tif_unix.c', \ + 'tif_version.c', \ + 'tif_warning.c', \ + 'tif_write.c', \ + 'tif_zip.c' ] + +StaticLibrary('tiff', SRCS) +SharedLibrary('tiff', SRCS) + diff --git a/tiff/libtiff/libtiff.def b/tiff/libtiff/libtiff.def new file mode 100644 index 0000000..3caefd8 --- /dev/null +++ b/tiff/libtiff/libtiff.def @@ -0,0 +1,140 @@ +EXPORTS TIFFOpen + TIFFOpenW + TIFFGetVersion + TIFFCleanup + TIFFClose + TIFFFlush + TIFFFlushData + TIFFGetField + TIFFVGetField + TIFFGetFieldDefaulted + TIFFVGetFieldDefaulted + TIFFGetTagListEntry + TIFFGetTagListCount + TIFFReadDirectory + TIFFScanlineSize + TIFFStripSize + TIFFVStripSize + TIFFRawStripSize + TIFFTileRowSize + TIFFTileSize + TIFFVTileSize + TIFFFileno + TIFFSetFileno + TIFFGetMode + TIFFIsTiled + TIFFIsByteSwapped + TIFFIsBigEndian + TIFFIsMSB2LSB + TIFFIsUpSampled + TIFFCIELabToRGBInit + TIFFCIELabToXYZ + TIFFXYZToRGB + TIFFYCbCrToRGBInit + TIFFYCbCrtoRGB + TIFFCurrentRow + TIFFCurrentDirectory + TIFFCurrentStrip + TIFFCurrentTile + TIFFDataWidth + TIFFReadBufferSetup + TIFFWriteBufferSetup + TIFFSetupStrips + TIFFLastDirectory + TIFFSetDirectory + TIFFSetSubDirectory + TIFFUnlinkDirectory + TIFFSetField + TIFFVSetField + TIFFCheckpointDirectory + TIFFWriteDirectory + TIFFRewriteDirectory + TIFFPrintDirectory + TIFFReadScanline + TIFFWriteScanline + TIFFReadRGBAImage + TIFFReadRGBAImageOriented + TIFFFdOpen + TIFFClientOpen + TIFFFileName + TIFFError + TIFFErrorExt + TIFFWarning + TIFFWarningExt + TIFFSetErrorHandler + TIFFSetErrorHandlerExt + TIFFSetWarningHandler + TIFFSetWarningHandlerExt + TIFFComputeTile + TIFFCheckTile + TIFFNumberOfTiles + TIFFReadTile + TIFFWriteTile + TIFFComputeStrip + TIFFNumberOfStrips + TIFFRGBAImageBegin + TIFFRGBAImageGet + TIFFRGBAImageEnd + TIFFReadEncodedStrip + TIFFReadRawStrip + TIFFReadEncodedTile + TIFFReadRawTile + TIFFReadRGBATile + TIFFReadRGBAStrip + TIFFWriteEncodedStrip + TIFFWriteRawStrip + TIFFWriteEncodedTile + TIFFWriteRawTile + TIFFSetWriteOffset + TIFFSwabDouble + TIFFSwabShort + TIFFSwabLong + TIFFSwabArrayOfShort + TIFFSwabArrayOfLong + TIFFSwabArrayOfDouble + TIFFSwabArrayOfTriples + TIFFReverseBits + TIFFGetBitRevTable + TIFFDefaultStripSize + TIFFDefaultTileSize + TIFFRasterScanlineSize + _TIFFmalloc + _TIFFrealloc + _TIFFfree + _TIFFmemset + _TIFFmemcpy + _TIFFmemcmp + TIFFCreateDirectory + TIFFSetTagExtender + TIFFMergeFieldInfo + TIFFFindFieldInfo + TIFFFindFieldInfoByName + TIFFFieldWithName + TIFFFieldWithTag + TIFFCurrentDirOffset + TIFFWriteCheck + TIFFRGBAImageOK + TIFFNumberOfDirectories + TIFFSetFileName + TIFFSetClientdata + TIFFSetMode + TIFFClientdata + TIFFGetReadProc + TIFFGetWriteProc + TIFFGetSeekProc + TIFFGetCloseProc + TIFFGetSizeProc + TIFFGetMapFileProc + TIFFGetUnmapFileProc + TIFFIsCODECConfigured + TIFFGetConfiguredCODECs + TIFFFindCODEC + TIFFRegisterCODEC + TIFFUnRegisterCODEC + TIFFFreeDirectory + TIFFReadCustomDirectory + TIFFReadEXIFDirectory + TIFFAccessTagMethods + TIFFGetClientInfo + TIFFSetClientInfo + TIFFReassignTagToIgnore diff --git a/tiff/libtiff/mkg3states.c b/tiff/libtiff/mkg3states.c new file mode 100644 index 0000000..7f4346b --- /dev/null +++ b/tiff/libtiff/mkg3states.c @@ -0,0 +1,451 @@ +/* "$Id: mkg3states.c,v 1.10.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1991-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* Initialise fax decoder tables + * Decoder support is derived, with permission, from the code + * in Frank Cringle's viewfax program; + * Copyright (C) 1990, 1995 Frank D. Cringle. + */ +#include "tif_config.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#include "tif_fax3.h" + +#ifndef HAVE_GETOPT +extern int getopt(int, char**, char*); +#endif + +#define streq(a,b) (strcmp(a,b) == 0) + +/* NB: can't use names in tif_fax3.h 'cuz they are declared const */ +TIFFFaxTabEnt MainTable[128]; +TIFFFaxTabEnt WhiteTable[4096]; +TIFFFaxTabEnt BlackTable[8192]; + +struct proto { + uint16 code; /* right justified, lsb-first, zero filled */ + uint16 val; /* (pixel count)<<4 + code width */ +}; + +static struct proto Pass[] = { +{ 0x0008, 4 }, +{ 0, 0 } +}; + +static struct proto Horiz[] = { +{ 0x0004, 3 }, +{ 0, 0 } +}; + +static struct proto V0[] = { +{ 0x0001, 1 }, +{ 0, 0 } +}; + +static struct proto VR[] = { +{ 0x0006, (1<<4)+3 }, +{ 0x0030, (2<<4)+6 }, +{ 0x0060, (3<<4)+7 }, +{ 0, 0 } +}; + +static struct proto VL[] = { +{ 0x0002, (1<<4)+3 }, +{ 0x0010, (2<<4)+6 }, +{ 0x0020, (3<<4)+7 }, +{ 0, 0 } +}; + +static struct proto Ext[] = { +{ 0x0040, 7 }, +{ 0, 0 } +}; + +static struct proto EOLV[] = { +{ 0x0000, 7 }, +{ 0, 0 } +}; + +static struct proto MakeUpW[] = { +{ 0x001b, 1029 }, +{ 0x0009, 2053 }, +{ 0x003a, 3078 }, +{ 0x0076, 4103 }, +{ 0x006c, 5128 }, +{ 0x00ec, 6152 }, +{ 0x0026, 7176 }, +{ 0x00a6, 8200 }, +{ 0x0016, 9224 }, +{ 0x00e6, 10248 }, +{ 0x0066, 11273 }, +{ 0x0166, 12297 }, +{ 0x0096, 13321 }, +{ 0x0196, 14345 }, +{ 0x0056, 15369 }, +{ 0x0156, 16393 }, +{ 0x00d6, 17417 }, +{ 0x01d6, 18441 }, +{ 0x0036, 19465 }, +{ 0x0136, 20489 }, +{ 0x00b6, 21513 }, +{ 0x01b6, 22537 }, +{ 0x0032, 23561 }, +{ 0x0132, 24585 }, +{ 0x00b2, 25609 }, +{ 0x0006, 26630 }, +{ 0x01b2, 27657 }, +{ 0, 0 } +}; + +static struct proto MakeUpB[] = { +{ 0x03c0, 1034 }, +{ 0x0130, 2060 }, +{ 0x0930, 3084 }, +{ 0x0da0, 4108 }, +{ 0x0cc0, 5132 }, +{ 0x02c0, 6156 }, +{ 0x0ac0, 7180 }, +{ 0x06c0, 8205 }, +{ 0x16c0, 9229 }, +{ 0x0a40, 10253 }, +{ 0x1a40, 11277 }, +{ 0x0640, 12301 }, +{ 0x1640, 13325 }, +{ 0x09c0, 14349 }, +{ 0x19c0, 15373 }, +{ 0x05c0, 16397 }, +{ 0x15c0, 17421 }, +{ 0x0dc0, 18445 }, +{ 0x1dc0, 19469 }, +{ 0x0940, 20493 }, +{ 0x1940, 21517 }, +{ 0x0540, 22541 }, +{ 0x1540, 23565 }, +{ 0x0b40, 24589 }, +{ 0x1b40, 25613 }, +{ 0x04c0, 26637 }, +{ 0x14c0, 27661 }, +{ 0, 0 } +}; + +static struct proto MakeUp[] = { +{ 0x0080, 28683 }, +{ 0x0180, 29707 }, +{ 0x0580, 30731 }, +{ 0x0480, 31756 }, +{ 0x0c80, 32780 }, +{ 0x0280, 33804 }, +{ 0x0a80, 34828 }, +{ 0x0680, 35852 }, +{ 0x0e80, 36876 }, +{ 0x0380, 37900 }, +{ 0x0b80, 38924 }, +{ 0x0780, 39948 }, +{ 0x0f80, 40972 }, +{ 0, 0 } +}; + +static struct proto TermW[] = { +{ 0x00ac, 8 }, +{ 0x0038, 22 }, +{ 0x000e, 36 }, +{ 0x0001, 52 }, +{ 0x000d, 68 }, +{ 0x0003, 84 }, +{ 0x0007, 100 }, +{ 0x000f, 116 }, +{ 0x0019, 133 }, +{ 0x0005, 149 }, +{ 0x001c, 165 }, +{ 0x0002, 181 }, +{ 0x0004, 198 }, +{ 0x0030, 214 }, +{ 0x000b, 230 }, +{ 0x002b, 246 }, +{ 0x0015, 262 }, +{ 0x0035, 278 }, +{ 0x0072, 295 }, +{ 0x0018, 311 }, +{ 0x0008, 327 }, +{ 0x0074, 343 }, +{ 0x0060, 359 }, +{ 0x0010, 375 }, +{ 0x000a, 391 }, +{ 0x006a, 407 }, +{ 0x0064, 423 }, +{ 0x0012, 439 }, +{ 0x000c, 455 }, +{ 0x0040, 472 }, +{ 0x00c0, 488 }, +{ 0x0058, 504 }, +{ 0x00d8, 520 }, +{ 0x0048, 536 }, +{ 0x00c8, 552 }, +{ 0x0028, 568 }, +{ 0x00a8, 584 }, +{ 0x0068, 600 }, +{ 0x00e8, 616 }, +{ 0x0014, 632 }, +{ 0x0094, 648 }, +{ 0x0054, 664 }, +{ 0x00d4, 680 }, +{ 0x0034, 696 }, +{ 0x00b4, 712 }, +{ 0x0020, 728 }, +{ 0x00a0, 744 }, +{ 0x0050, 760 }, +{ 0x00d0, 776 }, +{ 0x004a, 792 }, +{ 0x00ca, 808 }, +{ 0x002a, 824 }, +{ 0x00aa, 840 }, +{ 0x0024, 856 }, +{ 0x00a4, 872 }, +{ 0x001a, 888 }, +{ 0x009a, 904 }, +{ 0x005a, 920 }, +{ 0x00da, 936 }, +{ 0x0052, 952 }, +{ 0x00d2, 968 }, +{ 0x004c, 984 }, +{ 0x00cc, 1000 }, +{ 0x002c, 1016 }, +{ 0, 0 } +}; + +static struct proto TermB[] = { +{ 0x03b0, 10 }, +{ 0x0002, 19 }, +{ 0x0003, 34 }, +{ 0x0001, 50 }, +{ 0x0006, 67 }, +{ 0x000c, 84 }, +{ 0x0004, 100 }, +{ 0x0018, 117 }, +{ 0x0028, 134 }, +{ 0x0008, 150 }, +{ 0x0010, 167 }, +{ 0x0050, 183 }, +{ 0x0070, 199 }, +{ 0x0020, 216 }, +{ 0x00e0, 232 }, +{ 0x0030, 249 }, +{ 0x03a0, 266 }, +{ 0x0060, 282 }, +{ 0x0040, 298 }, +{ 0x0730, 315 }, +{ 0x00b0, 331 }, +{ 0x01b0, 347 }, +{ 0x0760, 363 }, +{ 0x00a0, 379 }, +{ 0x0740, 395 }, +{ 0x00c0, 411 }, +{ 0x0530, 428 }, +{ 0x0d30, 444 }, +{ 0x0330, 460 }, +{ 0x0b30, 476 }, +{ 0x0160, 492 }, +{ 0x0960, 508 }, +{ 0x0560, 524 }, +{ 0x0d60, 540 }, +{ 0x04b0, 556 }, +{ 0x0cb0, 572 }, +{ 0x02b0, 588 }, +{ 0x0ab0, 604 }, +{ 0x06b0, 620 }, +{ 0x0eb0, 636 }, +{ 0x0360, 652 }, +{ 0x0b60, 668 }, +{ 0x05b0, 684 }, +{ 0x0db0, 700 }, +{ 0x02a0, 716 }, +{ 0x0aa0, 732 }, +{ 0x06a0, 748 }, +{ 0x0ea0, 764 }, +{ 0x0260, 780 }, +{ 0x0a60, 796 }, +{ 0x04a0, 812 }, +{ 0x0ca0, 828 }, +{ 0x0240, 844 }, +{ 0x0ec0, 860 }, +{ 0x01c0, 876 }, +{ 0x0e40, 892 }, +{ 0x0140, 908 }, +{ 0x01a0, 924 }, +{ 0x09a0, 940 }, +{ 0x0d40, 956 }, +{ 0x0340, 972 }, +{ 0x05a0, 988 }, +{ 0x0660, 1004 }, +{ 0x0e60, 1020 }, +{ 0, 0 } +}; + +static struct proto EOLH[] = { +{ 0x0000, 11 }, +{ 0, 0 } +}; + +static void +FillTable(TIFFFaxTabEnt *T, int Size, struct proto *P, int State) +{ + int limit = 1 << Size; + + while (P->val) { + int width = P->val & 15; + int param = P->val >> 4; + int incr = 1 << width; + int code; + for (code = P->code; code < limit; code += incr) { + TIFFFaxTabEnt *E = T+code; + E->State = State; + E->Width = width; + E->Param = param; + } + P++; + } +} + +static char* storage_class = ""; +static char* const_class = ""; +static int packoutput = 1; +static char* prebrace = ""; +static char* postbrace = ""; + +void +WriteTable(FILE* fd, const TIFFFaxTabEnt* T, int Size, const char* name) +{ + int i; + char* sep; + + fprintf(fd, "%s %s TIFFFaxTabEnt %s[%d] = {", + storage_class, const_class, name, Size); + if (packoutput) { + sep = "\n"; + for (i = 0; i < Size; i++) { + fprintf(fd, "%s%s%d,%d,%d%s", + sep, prebrace, T->State, T->Width, (int) T->Param, postbrace); + if (((i+1) % 10) == 0) + sep = ",\n"; + else + sep = ","; + T++; + } + } else { + sep = "\n "; + for (i = 0; i < Size; i++) { + fprintf(fd, "%s%s%3d,%3d,%4d%s", + sep, prebrace, T->State, T->Width, (int) T->Param, postbrace); + if (((i+1) % 6) == 0) + sep = ",\n "; + else + sep = ","; + T++; + } + } + fprintf(fd, "\n};\n"); +} + +/* initialise the huffman code tables */ +int +main(int argc, char* argv[]) +{ + FILE* fd; + char* outputfile; + int c; + extern int optind; + extern char* optarg; + + while ((c = getopt(argc, argv, "c:s:bp")) != -1) + switch (c) { + case 'c': + const_class = optarg; + break; + case 's': + storage_class = optarg; + break; + case 'p': + packoutput = 0; + break; + case 'b': + prebrace = "{"; + postbrace = "}"; + break; + case '?': + fprintf(stderr, + "usage: %s [-c const] [-s storage] [-p] [-b] file\n", + argv[0]); + return (-1); + } + outputfile = optind < argc ? argv[optind] : "g3states.h"; + fd = fopen(outputfile, "w"); + if (fd == NULL) { + fprintf(stderr, "%s: %s: Cannot create output file.\n", + argv[0], outputfile); + return (-2); + } + FillTable(MainTable, 7, Pass, S_Pass); + FillTable(MainTable, 7, Horiz, S_Horiz); + FillTable(MainTable, 7, V0, S_V0); + FillTable(MainTable, 7, VR, S_VR); + FillTable(MainTable, 7, VL, S_VL); + FillTable(MainTable, 7, Ext, S_Ext); + FillTable(MainTable, 7, EOLV, S_EOL); + FillTable(WhiteTable, 12, MakeUpW, S_MakeUpW); + FillTable(WhiteTable, 12, MakeUp, S_MakeUp); + FillTable(WhiteTable, 12, TermW, S_TermW); + FillTable(WhiteTable, 12, EOLH, S_EOL); + FillTable(BlackTable, 13, MakeUpB, S_MakeUpB); + FillTable(BlackTable, 13, MakeUp, S_MakeUp); + FillTable(BlackTable, 13, TermB, S_TermB); + FillTable(BlackTable, 13, EOLH, S_EOL); + + fprintf(fd, "/* WARNING, this file was automatically generated by the\n"); + fprintf(fd, " mkg3states program */\n"); + fprintf(fd, "#include \"tiff.h\"\n"); + fprintf(fd, "#include \"tif_fax3.h\"\n"); + WriteTable(fd, MainTable, 128, "TIFFFaxMainTable"); + WriteTable(fd, WhiteTable, 4096, "TIFFFaxWhiteTable"); + WriteTable(fd, BlackTable, 8192, "TIFFFaxBlackTable"); + fclose(fd); + return (0); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/t4.h b/tiff/libtiff/t4.h new file mode 100644 index 0000000..870704f --- /dev/null +++ b/tiff/libtiff/t4.h @@ -0,0 +1,292 @@ +/* $Id: t4.h,v 1.1.1.1.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _T4_ +#define _T4_ +/* + * CCITT T.4 1D Huffman runlength codes and + * related definitions. Given the small sizes + * of these tables it does not seem + * worthwhile to make code & length 8 bits. + */ +typedef struct tableentry { + unsigned short length; /* bit length of g3 code */ + unsigned short code; /* g3 code */ + short runlen; /* run length in bits */ +} tableentry; + +#define EOL 0x001 /* EOL code value - 0000 0000 0000 1 */ + +/* status values returned instead of a run length */ +#define G3CODE_EOL -1 /* NB: ACT_EOL - ACT_WRUNT */ +#define G3CODE_INVALID -2 /* NB: ACT_INVALID - ACT_WRUNT */ +#define G3CODE_EOF -3 /* end of input data */ +#define G3CODE_INCOMP -4 /* incomplete run code */ + +/* + * Note that these tables are ordered such that the + * index into the table is known to be either the + * run length, or (run length / 64) + a fixed offset. + * + * NB: The G3CODE_INVALID entries are only used + * during state generation (see mkg3states.c). + */ +#ifdef G3CODES +const tableentry TIFFFaxWhiteCodes[] = { + { 8, 0x35, 0 }, /* 0011 0101 */ + { 6, 0x7, 1 }, /* 0001 11 */ + { 4, 0x7, 2 }, /* 0111 */ + { 4, 0x8, 3 }, /* 1000 */ + { 4, 0xB, 4 }, /* 1011 */ + { 4, 0xC, 5 }, /* 1100 */ + { 4, 0xE, 6 }, /* 1110 */ + { 4, 0xF, 7 }, /* 1111 */ + { 5, 0x13, 8 }, /* 1001 1 */ + { 5, 0x14, 9 }, /* 1010 0 */ + { 5, 0x7, 10 }, /* 0011 1 */ + { 5, 0x8, 11 }, /* 0100 0 */ + { 6, 0x8, 12 }, /* 0010 00 */ + { 6, 0x3, 13 }, /* 0000 11 */ + { 6, 0x34, 14 }, /* 1101 00 */ + { 6, 0x35, 15 }, /* 1101 01 */ + { 6, 0x2A, 16 }, /* 1010 10 */ + { 6, 0x2B, 17 }, /* 1010 11 */ + { 7, 0x27, 18 }, /* 0100 111 */ + { 7, 0xC, 19 }, /* 0001 100 */ + { 7, 0x8, 20 }, /* 0001 000 */ + { 7, 0x17, 21 }, /* 0010 111 */ + { 7, 0x3, 22 }, /* 0000 011 */ + { 7, 0x4, 23 }, /* 0000 100 */ + { 7, 0x28, 24 }, /* 0101 000 */ + { 7, 0x2B, 25 }, /* 0101 011 */ + { 7, 0x13, 26 }, /* 0010 011 */ + { 7, 0x24, 27 }, /* 0100 100 */ + { 7, 0x18, 28 }, /* 0011 000 */ + { 8, 0x2, 29 }, /* 0000 0010 */ + { 8, 0x3, 30 }, /* 0000 0011 */ + { 8, 0x1A, 31 }, /* 0001 1010 */ + { 8, 0x1B, 32 }, /* 0001 1011 */ + { 8, 0x12, 33 }, /* 0001 0010 */ + { 8, 0x13, 34 }, /* 0001 0011 */ + { 8, 0x14, 35 }, /* 0001 0100 */ + { 8, 0x15, 36 }, /* 0001 0101 */ + { 8, 0x16, 37 }, /* 0001 0110 */ + { 8, 0x17, 38 }, /* 0001 0111 */ + { 8, 0x28, 39 }, /* 0010 1000 */ + { 8, 0x29, 40 }, /* 0010 1001 */ + { 8, 0x2A, 41 }, /* 0010 1010 */ + { 8, 0x2B, 42 }, /* 0010 1011 */ + { 8, 0x2C, 43 }, /* 0010 1100 */ + { 8, 0x2D, 44 }, /* 0010 1101 */ + { 8, 0x4, 45 }, /* 0000 0100 */ + { 8, 0x5, 46 }, /* 0000 0101 */ + { 8, 0xA, 47 }, /* 0000 1010 */ + { 8, 0xB, 48 }, /* 0000 1011 */ + { 8, 0x52, 49 }, /* 0101 0010 */ + { 8, 0x53, 50 }, /* 0101 0011 */ + { 8, 0x54, 51 }, /* 0101 0100 */ + { 8, 0x55, 52 }, /* 0101 0101 */ + { 8, 0x24, 53 }, /* 0010 0100 */ + { 8, 0x25, 54 }, /* 0010 0101 */ + { 8, 0x58, 55 }, /* 0101 1000 */ + { 8, 0x59, 56 }, /* 0101 1001 */ + { 8, 0x5A, 57 }, /* 0101 1010 */ + { 8, 0x5B, 58 }, /* 0101 1011 */ + { 8, 0x4A, 59 }, /* 0100 1010 */ + { 8, 0x4B, 60 }, /* 0100 1011 */ + { 8, 0x32, 61 }, /* 0011 0010 */ + { 8, 0x33, 62 }, /* 0011 0011 */ + { 8, 0x34, 63 }, /* 0011 0100 */ + { 5, 0x1B, 64 }, /* 1101 1 */ + { 5, 0x12, 128 }, /* 1001 0 */ + { 6, 0x17, 192 }, /* 0101 11 */ + { 7, 0x37, 256 }, /* 0110 111 */ + { 8, 0x36, 320 }, /* 0011 0110 */ + { 8, 0x37, 384 }, /* 0011 0111 */ + { 8, 0x64, 448 }, /* 0110 0100 */ + { 8, 0x65, 512 }, /* 0110 0101 */ + { 8, 0x68, 576 }, /* 0110 1000 */ + { 8, 0x67, 640 }, /* 0110 0111 */ + { 9, 0xCC, 704 }, /* 0110 0110 0 */ + { 9, 0xCD, 768 }, /* 0110 0110 1 */ + { 9, 0xD2, 832 }, /* 0110 1001 0 */ + { 9, 0xD3, 896 }, /* 0110 1001 1 */ + { 9, 0xD4, 960 }, /* 0110 1010 0 */ + { 9, 0xD5, 1024 }, /* 0110 1010 1 */ + { 9, 0xD6, 1088 }, /* 0110 1011 0 */ + { 9, 0xD7, 1152 }, /* 0110 1011 1 */ + { 9, 0xD8, 1216 }, /* 0110 1100 0 */ + { 9, 0xD9, 1280 }, /* 0110 1100 1 */ + { 9, 0xDA, 1344 }, /* 0110 1101 0 */ + { 9, 0xDB, 1408 }, /* 0110 1101 1 */ + { 9, 0x98, 1472 }, /* 0100 1100 0 */ + { 9, 0x99, 1536 }, /* 0100 1100 1 */ + { 9, 0x9A, 1600 }, /* 0100 1101 0 */ + { 6, 0x18, 1664 }, /* 0110 00 */ + { 9, 0x9B, 1728 }, /* 0100 1101 1 */ + { 11, 0x8, 1792 }, /* 0000 0001 000 */ + { 11, 0xC, 1856 }, /* 0000 0001 100 */ + { 11, 0xD, 1920 }, /* 0000 0001 101 */ + { 12, 0x12, 1984 }, /* 0000 0001 0010 */ + { 12, 0x13, 2048 }, /* 0000 0001 0011 */ + { 12, 0x14, 2112 }, /* 0000 0001 0100 */ + { 12, 0x15, 2176 }, /* 0000 0001 0101 */ + { 12, 0x16, 2240 }, /* 0000 0001 0110 */ + { 12, 0x17, 2304 }, /* 0000 0001 0111 */ + { 12, 0x1C, 2368 }, /* 0000 0001 1100 */ + { 12, 0x1D, 2432 }, /* 0000 0001 1101 */ + { 12, 0x1E, 2496 }, /* 0000 0001 1110 */ + { 12, 0x1F, 2560 }, /* 0000 0001 1111 */ + { 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */ + { 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */ + { 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */ + { 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */ + { 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */ +}; + +const tableentry TIFFFaxBlackCodes[] = { + { 10, 0x37, 0 }, /* 0000 1101 11 */ + { 3, 0x2, 1 }, /* 010 */ + { 2, 0x3, 2 }, /* 11 */ + { 2, 0x2, 3 }, /* 10 */ + { 3, 0x3, 4 }, /* 011 */ + { 4, 0x3, 5 }, /* 0011 */ + { 4, 0x2, 6 }, /* 0010 */ + { 5, 0x3, 7 }, /* 0001 1 */ + { 6, 0x5, 8 }, /* 0001 01 */ + { 6, 0x4, 9 }, /* 0001 00 */ + { 7, 0x4, 10 }, /* 0000 100 */ + { 7, 0x5, 11 }, /* 0000 101 */ + { 7, 0x7, 12 }, /* 0000 111 */ + { 8, 0x4, 13 }, /* 0000 0100 */ + { 8, 0x7, 14 }, /* 0000 0111 */ + { 9, 0x18, 15 }, /* 0000 1100 0 */ + { 10, 0x17, 16 }, /* 0000 0101 11 */ + { 10, 0x18, 17 }, /* 0000 0110 00 */ + { 10, 0x8, 18 }, /* 0000 0010 00 */ + { 11, 0x67, 19 }, /* 0000 1100 111 */ + { 11, 0x68, 20 }, /* 0000 1101 000 */ + { 11, 0x6C, 21 }, /* 0000 1101 100 */ + { 11, 0x37, 22 }, /* 0000 0110 111 */ + { 11, 0x28, 23 }, /* 0000 0101 000 */ + { 11, 0x17, 24 }, /* 0000 0010 111 */ + { 11, 0x18, 25 }, /* 0000 0011 000 */ + { 12, 0xCA, 26 }, /* 0000 1100 1010 */ + { 12, 0xCB, 27 }, /* 0000 1100 1011 */ + { 12, 0xCC, 28 }, /* 0000 1100 1100 */ + { 12, 0xCD, 29 }, /* 0000 1100 1101 */ + { 12, 0x68, 30 }, /* 0000 0110 1000 */ + { 12, 0x69, 31 }, /* 0000 0110 1001 */ + { 12, 0x6A, 32 }, /* 0000 0110 1010 */ + { 12, 0x6B, 33 }, /* 0000 0110 1011 */ + { 12, 0xD2, 34 }, /* 0000 1101 0010 */ + { 12, 0xD3, 35 }, /* 0000 1101 0011 */ + { 12, 0xD4, 36 }, /* 0000 1101 0100 */ + { 12, 0xD5, 37 }, /* 0000 1101 0101 */ + { 12, 0xD6, 38 }, /* 0000 1101 0110 */ + { 12, 0xD7, 39 }, /* 0000 1101 0111 */ + { 12, 0x6C, 40 }, /* 0000 0110 1100 */ + { 12, 0x6D, 41 }, /* 0000 0110 1101 */ + { 12, 0xDA, 42 }, /* 0000 1101 1010 */ + { 12, 0xDB, 43 }, /* 0000 1101 1011 */ + { 12, 0x54, 44 }, /* 0000 0101 0100 */ + { 12, 0x55, 45 }, /* 0000 0101 0101 */ + { 12, 0x56, 46 }, /* 0000 0101 0110 */ + { 12, 0x57, 47 }, /* 0000 0101 0111 */ + { 12, 0x64, 48 }, /* 0000 0110 0100 */ + { 12, 0x65, 49 }, /* 0000 0110 0101 */ + { 12, 0x52, 50 }, /* 0000 0101 0010 */ + { 12, 0x53, 51 }, /* 0000 0101 0011 */ + { 12, 0x24, 52 }, /* 0000 0010 0100 */ + { 12, 0x37, 53 }, /* 0000 0011 0111 */ + { 12, 0x38, 54 }, /* 0000 0011 1000 */ + { 12, 0x27, 55 }, /* 0000 0010 0111 */ + { 12, 0x28, 56 }, /* 0000 0010 1000 */ + { 12, 0x58, 57 }, /* 0000 0101 1000 */ + { 12, 0x59, 58 }, /* 0000 0101 1001 */ + { 12, 0x2B, 59 }, /* 0000 0010 1011 */ + { 12, 0x2C, 60 }, /* 0000 0010 1100 */ + { 12, 0x5A, 61 }, /* 0000 0101 1010 */ + { 12, 0x66, 62 }, /* 0000 0110 0110 */ + { 12, 0x67, 63 }, /* 0000 0110 0111 */ + { 10, 0xF, 64 }, /* 0000 0011 11 */ + { 12, 0xC8, 128 }, /* 0000 1100 1000 */ + { 12, 0xC9, 192 }, /* 0000 1100 1001 */ + { 12, 0x5B, 256 }, /* 0000 0101 1011 */ + { 12, 0x33, 320 }, /* 0000 0011 0011 */ + { 12, 0x34, 384 }, /* 0000 0011 0100 */ + { 12, 0x35, 448 }, /* 0000 0011 0101 */ + { 13, 0x6C, 512 }, /* 0000 0011 0110 0 */ + { 13, 0x6D, 576 }, /* 0000 0011 0110 1 */ + { 13, 0x4A, 640 }, /* 0000 0010 0101 0 */ + { 13, 0x4B, 704 }, /* 0000 0010 0101 1 */ + { 13, 0x4C, 768 }, /* 0000 0010 0110 0 */ + { 13, 0x4D, 832 }, /* 0000 0010 0110 1 */ + { 13, 0x72, 896 }, /* 0000 0011 1001 0 */ + { 13, 0x73, 960 }, /* 0000 0011 1001 1 */ + { 13, 0x74, 1024 }, /* 0000 0011 1010 0 */ + { 13, 0x75, 1088 }, /* 0000 0011 1010 1 */ + { 13, 0x76, 1152 }, /* 0000 0011 1011 0 */ + { 13, 0x77, 1216 }, /* 0000 0011 1011 1 */ + { 13, 0x52, 1280 }, /* 0000 0010 1001 0 */ + { 13, 0x53, 1344 }, /* 0000 0010 1001 1 */ + { 13, 0x54, 1408 }, /* 0000 0010 1010 0 */ + { 13, 0x55, 1472 }, /* 0000 0010 1010 1 */ + { 13, 0x5A, 1536 }, /* 0000 0010 1101 0 */ + { 13, 0x5B, 1600 }, /* 0000 0010 1101 1 */ + { 13, 0x64, 1664 }, /* 0000 0011 0010 0 */ + { 13, 0x65, 1728 }, /* 0000 0011 0010 1 */ + { 11, 0x8, 1792 }, /* 0000 0001 000 */ + { 11, 0xC, 1856 }, /* 0000 0001 100 */ + { 11, 0xD, 1920 }, /* 0000 0001 101 */ + { 12, 0x12, 1984 }, /* 0000 0001 0010 */ + { 12, 0x13, 2048 }, /* 0000 0001 0011 */ + { 12, 0x14, 2112 }, /* 0000 0001 0100 */ + { 12, 0x15, 2176 }, /* 0000 0001 0101 */ + { 12, 0x16, 2240 }, /* 0000 0001 0110 */ + { 12, 0x17, 2304 }, /* 0000 0001 0111 */ + { 12, 0x1C, 2368 }, /* 0000 0001 1100 */ + { 12, 0x1D, 2432 }, /* 0000 0001 1101 */ + { 12, 0x1E, 2496 }, /* 0000 0001 1110 */ + { 12, 0x1F, 2560 }, /* 0000 0001 1111 */ + { 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */ + { 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */ + { 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */ + { 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */ + { 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */ +}; +#else +extern const tableentry TIFFFaxWhiteCodes[]; +extern const tableentry TIFFFaxBlackCodes[]; +#endif +#endif /* _T4_ */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_acorn.c b/tiff/libtiff/tif_acorn.c new file mode 100644 index 0000000..63f9234 --- /dev/null +++ b/tiff/libtiff/tif_acorn.c @@ -0,0 +1,526 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_acorn.c,v 1.2.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library RISC OS specific Routines. + * Developed out of the Unix version. + * Peter Greenham, May 1995 + */ +#include "tiffiop.h" +#include <stdio.h> +#include <stdlib.h> + +/* +Low-level file handling +~~~~~~~~~~~~~~~~~~~~~~~ +The functions in osfcn.h are unavailable when compiling under C, as it's a +C++ header. Therefore they have been implemented here. + +Now, why have I done it this way? + +The definitive API library for RISC OS is Jonathan Coxhead's OSLib, which +uses heavily optimised ARM assembler or even plain inline SWI calls for +maximum performance and minimum runtime size. However, I don't want to make +LIBTIFF need that to survive. Therefore I have also emulated the functions +using macros to _swi() and _swix() defined in the swis.h header, and +borrowing types from kernel.h, which is less efficient but doesn't need any +third-party libraries. + */ + +#ifdef INCLUDE_OSLIB + +#include "osfile.h" +#include "osgbpb.h" +#include "osargs.h" +#include "osfind.h" + +#else + +/* OSLIB EMULATION STARTS */ + +#include "kernel.h" +#include "swis.h" + +/* From oslib:types.h */ +typedef unsigned int bits; +typedef unsigned char byte; +#ifndef TRUE +#define TRUE 1 +#endif +#ifndef FALSE +#define FALSE 0 +#endif +#ifndef NULL +#define NULL 0 +#endif +#ifndef SKIP +#define SKIP 0 +#endif + +/* From oslib:os.h */ +typedef _kernel_oserror os_error; +typedef byte os_f; + +/* From oslib:osfile.h */ +#undef OS_File +#define OS_File 0x8 + +/* From oslib:osgbpb.h */ +#undef OS_GBPB +#define OS_GBPB 0xC +#undef OSGBPB_Write +#define OSGBPB_Write 0x2 +#undef OSGBPB_Read +#define OSGBPB_Read 0x4 + +extern os_error *xosgbpb_write (os_f file, + byte *data, + int size, + int *unwritten); +extern int osgbpb_write (os_f file, + byte *data, + int size); + +#define xosgbpb_write(file, data, size, unwritten) \ + (os_error*) _swix(OS_GBPB, _IN(0)|_IN(1)|_IN(2)|_IN(3)|_IN(4)|_OUT(3), \ + OSGBPB_WriteAt, \ + file, \ + data, \ + size, \ + unwritten) + +#define osgbpb_write(file, data, size) \ + _swi(OS_GBPB, _IN(0)|_IN(1)|_IN(2)|_IN(3)|_RETURN(3), \ + OSGBPB_Write, \ + file, \ + data, \ + size) + +extern os_error *xosgbpb_read (os_f file, + byte *buffer, + int size, + int *unread); +extern int osgbpb_read (os_f file, + byte *buffer, + int size); + +#define xosgbpb_read(file, buffer, size, unread) \ + (os_error*) _swix(OS_GBPB, _IN(0)|_IN(1)|_IN(2)|_IN(3)|_OUT(3), \ + OSGBPB_Read, \ + file, \ + buffer, \ + size, \ + unread) + +#define osgbpb_read(file, buffer, size) \ + _swi(OS_GBPB, _IN(0)|_IN(1)|_IN(2)|_IN(3)|_RETURN(3), \ + OSGBPB_Read, \ + file, \ + buffer, \ + size) + +/* From oslib:osfind.h */ +#undef OS_Find +#define OS_Find 0xD +#undef OSFind_Openin +#define OSFind_Openin 0x40 +#undef OSFind_Openout +#define OSFind_Openout 0x80 +#undef OSFind_Openup +#define OSFind_Openup 0xC0 +#undef OSFind_Close +#define OSFind_Close 0x0 + +#define xosfind_open(reason, file_name, path, file) \ + (os_error*) _swix(OS_Find, _IN(0)|_IN(1)|_IN(2)|_OUT(0), \ + reason, file_name, path, file) + +#define osfind_open(reason, file_name, path) \ + (os_f) _swi(OS_Find, _IN(0)|_IN(1)|_IN(2)|_RETURN(0), \ + reason, file_name, path) + +extern os_error *xosfind_openin (bits flags, + char *file_name, + char *path, + os_f *file); +extern os_f osfind_openin (bits flags, + char *file_name, + char *path); + +#define xosfind_openin(flags, file_name, path, file) \ + xosfind_open(flags | OSFind_Openin, file_name, path, file) + +#define osfind_openin(flags, file_name, path) \ + osfind_open(flags | OSFind_Openin, file_name, path) + +extern os_error *xosfind_openout (bits flags, + char *file_name, + char *path, + os_f *file); +extern os_f osfind_openout (bits flags, + char *file_name, + char *path); + +#define xosfind_openout(flags, file_name, path, file) \ + xosfind_open(flags | OSFind_Openout, file_name, path, file) + +#define osfind_openout(flags, file_name, path) \ + osfind_open(flags | OSFind_Openout, file_name, path) + +extern os_error *xosfind_openup (bits flags, + char *file_name, + char *path, + os_f *file); +extern os_f osfind_openup (bits flags, + char *file_name, + char *path); + +#define xosfind_openup(flags, file_name, path, file) \ + xosfind_open(flags | OSFind_Openup, file_name, path, file) + +#define osfind_openup(flags, file_name, path) \ + osfind_open(flags | OSFind_Openup, file_name, path) + +extern os_error *xosfind_close (os_f file); +extern void osfind_close (os_f file); + +#define xosfind_close(file) \ + (os_error*) _swix(OS_Find, _IN(0)|_IN(1), \ + OSFind_Close, \ + file) + +#define osfind_close(file) \ + (void) _swi(OS_Find, _IN(0)|_IN(1), \ + OSFind_Close, \ + file) + +/* From oslib:osargs.h */ +#undef OS_Args +#define OS_Args 0x9 +#undef OSArgs_ReadPtr +#define OSArgs_ReadPtr 0x0 +#undef OSArgs_SetPtr +#define OSArgs_SetPtr 0x1 +#undef OSArgs_ReadExt +#define OSArgs_ReadExt 0x2 + +extern os_error *xosargs_read_ptr (os_f file, + int *ptr); +extern int osargs_read_ptr (os_f file); + +#define xosargs_read_ptr(file, ptr) \ + (os_error*) _swix(OS_Args, _IN(0)|_IN(1)|_OUT(2), \ + OSArgs_ReadPtr, \ + file, \ + ptr) + +#define osargs_read_ptr(file) \ + _swi(OS_Args, _IN(0)|_IN(1)|_RETURN(2), \ + OSArgs_ReadPtr, \ + file) + +extern os_error *xosargs_set_ptr (os_f file, + int ptr); +extern void osargs_set_ptr (os_f file, + int ptr); + +#define xosargs_set_ptr(file, ptr) \ + (os_error*) _swix(OS_Args, _IN(0)|_IN(1)|_IN(2), \ + OSArgs_SetPtr, \ + file, \ + ptr) + +#define osargs_set_ptr(file, ptr) \ + (void) _swi(OS_Args, _IN(0)|_IN(1)|_IN(2), \ + OSArgs_SetPtr, \ + file, \ + ptr) + +extern os_error *xosargs_read_ext (os_f file, + int *ext); +extern int osargs_read_ext (os_f file); + +#define xosargs_read_ext(file, ext) \ + (os_error*) _swix(OS_Args, _IN(0)|_IN(1)|_OUT(2), \ + OSArgs_ReadExt, \ + file, \ + ext) + +#define osargs_read_ext(file) \ + _swi(OS_Args, _IN(0)|_IN(1)|_RETURN(2), \ + OSArgs_ReadExt, \ + file) + +/* OSLIB EMULATION ENDS */ + +#endif + +#ifndef __osfcn_h +/* Will be set or not during tiffcomp.h */ +/* You get this to compile under C++? Please say how! */ + +extern int open(const char* name, int flags, int mode) +{ + /* From what I can tell, should return <0 for failure */ + os_error* e = (os_error*) 1; /* Cheeky way to use a pointer eh? :-) */ + os_f file = (os_f) -1; + + flags = flags; + + switch(mode) + { + case O_RDONLY: + { + e = xosfind_openin(SKIP, name, SKIP, &file); + break; + } + case O_WRONLY: + case O_RDWR|O_CREAT: + case O_RDWR|O_CREAT|O_TRUNC: + { + e = xosfind_openout(SKIP, name, SKIP, &file); + break; + } + case O_RDWR: + { + e = xosfind_openup(SKIP, name, SKIP, &file); + break; + } + } + if (e) + { + file = (os_f) -1; + } + return (file); +} + +extern int close(int fd) +{ + return ((int) xosfind_close((os_f) fd)); +} + +extern int write(int fd, const char *buf, int nbytes) +{ + /* Returns number of bytes written */ + return (nbytes - osgbpb_write((os_f) fd, (const byte*) buf, nbytes)); +} + +extern int read(int fd, char *buf, int nbytes) +{ + /* Returns number of bytes read */ + return (nbytes - osgbpb_read((os_f) fd, (byte*) buf, nbytes)); +} + +extern off_t lseek(int fd, off_t offset, int whence) +{ + int absolute = 0; + + switch (whence) + { + case SEEK_SET: + { + absolute = (int) offset; + break; + } + case SEEK_CUR: + { + absolute = osargs_read_ptr((os_f) fd) + (int) offset; + break; + } + case SEEK_END: + { + absolute = osargs_read_ext((os_f) fd) + (int) offset; + break; + } + } + + osargs_set_ptr((os_f) fd, absolute); + + return ((off_t) osargs_read_ptr((os_f) fd)); +} +#endif + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return ((tsize_t) read((int) fd, buf, (size_t) size)); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return ((tsize_t) write((int) fd, buf, (size_t) size)); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + return ((toff_t) lseek((int) fd, (off_t) off, whence)); +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (close((int) fd)); +} + +static toff_t +_tiffSizeProc(thandle_t fd) +{ + return (lseek((int) fd, SEEK_END, SEEK_SET)); +} + +#ifdef HAVE_MMAP +#error "I didn't know Acorn had that!" +#endif + +/* !HAVE_MMAP */ +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + (void) fd; (void) pbase; (void) psize; + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; (void) base; (void) size; +} + +/* + * Open a TIFF file descriptor for read/writing. + */ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, + (thandle_t) fd, + _tiffReadProc, _tiffWriteProc, + _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, + _tiffMapProc, _tiffUnmapProc); + if (tif) + { + tif->tif_fd = fd; + } + return (tif); +} + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + int m, fd; + + m = _TIFFgetMode(mode, module); + + if (m == -1) + { + return ((TIFF*) 0); + } + + fd = open(name, 0, m); + + if (fd < 0) + { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF *)0); + } + return (TIFFFdOpen(fd, name, mode)); +} + +void* +_TIFFmalloc(tsize_t s) +{ + return (malloc((size_t) s)); +} + +void +_TIFFfree(tdata_t p) +{ + free(p); +} + +void* +_TIFFrealloc(tdata_t p, tsize_t s) +{ + return (realloc(p, (size_t) s)); +} + +void +_TIFFmemset(tdata_t p, int v, tsize_t c) +{ + memset(p, v, (size_t) c); +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) +{ + memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + return (memcmp(p1, p2, (size_t) c)); +} + +static void +acornWarningHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + { + fprintf(stderr, "%s: ", module); + } + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFwarningHandler = acornWarningHandler; + +static void +acornErrorHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + { + fprintf(stderr, "%s: ", module); + } + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFerrorHandler = acornErrorHandler; +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_apple.c b/tiff/libtiff/tif_apple.c new file mode 100644 index 0000000..8c48228 --- /dev/null +++ b/tiff/libtiff/tif_apple.c @@ -0,0 +1,281 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_apple.c,v 1.3.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library Macintosh-specific routines. + * + * These routines use only Toolbox and high-level File Manager traps. + * They make no calls to the THINK C "unix" compatibility library. Also, + * malloc is not used directly but it is still referenced internally by + * the ANSI library in rare cases. Heap fragmentation by the malloc ring + * buffer is therefore minimized. + * + * O_RDONLY and O_RDWR are treated identically here. The tif_mode flag is + * checked in TIFFWriteCheck(). + * + * Create below fills in a blank creator signature and sets the file type + * to 'TIFF'. It is much better for the application to do this by Create'ing + * the file first and TIFFOpen'ing it later. + * --------- + * This code has been "Carbonized", and may not work with older MacOS versions. + * If so, grab the tif_apple.c out of an older libtiff distribution, like + * 3.5.5 from www.libtiff.org. + */ + +#include "tiffiop.h" +#include <Errors.h> +#include <Files.h> +#include <Memory.h> +#include <Script.h> + +#if defined(__PPCC__) || defined(__SC__) || defined(__MRC__) || defined(applec) +#define CtoPstr c2pstr +#endif + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return (FSRead((short) fd, (long*) &size, (char*) buf) == noErr ? + size : (tsize_t) -1); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return (FSWrite((short) fd, (long*) &size, (char*) buf) == noErr ? + size : (tsize_t) -1); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + long fpos, size; + + if (GetEOF((short) fd, &size) != noErr) + return EOF; + (void) GetFPos((short) fd, &fpos); + + switch (whence) { + case SEEK_CUR: + if (off + fpos > size) + SetEOF((short) fd, off + fpos); + if (SetFPos((short) fd, fsFromMark, off) != noErr) + return EOF; + break; + case SEEK_END: + if (off > 0) + SetEOF((short) fd, off + size); + if (SetFPos((short) fd, fsFromStart, off + size) != noErr) + return EOF; + break; + case SEEK_SET: + if (off > size) + SetEOF((short) fd, off); + if (SetFPos((short) fd, fsFromStart, off) != noErr) + return EOF; + break; + } + + return (toff_t)(GetFPos((short) fd, &fpos) == noErr ? fpos : EOF); +} + +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (FSClose((short) fd)); +} + +static toff_t +_tiffSizeProc(thandle_t fd) +{ + long size; + + if (GetEOF((short) fd, &size) != noErr) { + TIFFErrorExt(fd, "_tiffSizeProc", "%s: Cannot get file size"); + return (-1L); + } + return ((toff_t) size); +} + +/* + * Open a TIFF file descriptor for read/writing. + */ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, (thandle_t) fd, + _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, + _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); + if (tif) + tif->tif_fd = fd; + return (tif); +} + +static void ourc2pstr( char* inString ) +{ + int sLen = strlen( inString ); + BlockMoveData( inString, &inString[1], sLen ); + inString[0] = sLen; +} + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + Str255 pname; + FInfo finfo; + short fref; + OSErr err; + FSSpec fSpec; + + strcpy((char*) pname, name); + ourc2pstr((char*) pname); + + err = FSMakeFSSpec( 0, 0, pname, &fSpec ); + + switch (_TIFFgetMode(mode, module)) { + default: + return ((TIFF*) 0); + case O_RDWR | O_CREAT | O_TRUNC: + if (FSpGetFInfo(&fSpec, &finfo) == noErr) + FSpDelete(&fSpec); + /* fall through */ + case O_RDWR | O_CREAT: + if ((err = FSpGetFInfo(&fSpec, &finfo)) == fnfErr) { + if (FSpCreate(&fSpec, ' ', 'TIFF', smSystemScript) != noErr) + goto badCreate; + if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr) + goto badOpen; + } else if (err == noErr) { + if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr) + goto badOpen; + } else + goto badOpen; + break; + case O_RDONLY: + if (FSpOpenDF(&fSpec, fsRdPerm, &fref) != noErr) + goto badOpen; + break; + case O_RDWR: + if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr) + goto badOpen; + break; + } + return (TIFFFdOpen((int) fref, name, mode)); +badCreate: + TIFFErrorExt(0, module, "%s: Cannot create", name); + return ((TIFF*) 0); +badOpen: + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF*) 0); +} + +void +_TIFFmemset(tdata_t p, int v, tsize_t c) +{ + memset(p, v, (size_t) c); +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) +{ + memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + return (memcmp(p1, p2, (size_t) c)); +} + +tdata_t +_TIFFmalloc(tsize_t s) +{ + return (NewPtr((size_t) s)); +} + +void +_TIFFfree(tdata_t p) +{ + DisposePtr(p); +} + +tdata_t +_TIFFrealloc(tdata_t p, tsize_t s) +{ + Ptr n = p; + + SetPtrSize(p, (size_t) s); + if (MemError() && (n = NewPtr((size_t) s)) != NULL) { + BlockMove(p, n, GetPtrSize(p)); + DisposePtr(p); + } + return ((tdata_t) n); +} + +static void +appleWarningHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFwarningHandler = appleWarningHandler; + +static void +appleErrorHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFerrorHandler = appleErrorHandler; +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_atari.c b/tiff/libtiff/tif_atari.c new file mode 100644 index 0000000..4f56c2c --- /dev/null +++ b/tiff/libtiff/tif_atari.c @@ -0,0 +1,250 @@ +/* "$Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_atari.c,v 1.2.2.1 2010-06-08 18:50:41 bfriesen Exp $" */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library ATARI-specific Routines. + */ +#include "tiffiop.h" +#if defined(__TURBOC__) +#include <tos.h> +#include <stdio.h> +#else +#include <osbind.h> +#include <fcntl.h> +#endif + +#ifndef O_ACCMODE +#define O_ACCMODE 3 +#endif + +#include <errno.h> + +#define AEFILNF -33 + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + long r; + + r = Fread((int) fd, size, buf); + if (r < 0) { + errno = (int)-r; + r = -1; + } + return r; +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + long r; + + r = Fwrite((int) fd, size, buf); + if (r < 0) { + errno = (int)-r; + r = -1; + } + return r; +} + +static toff_t +_tiffSeekProc(thandle_t fd, off_t off, int whence) +{ + char buf[256]; + long current_off, expected_off, new_off; + + if (whence == SEEK_END || off <= 0) + return Fseek(off, (int) fd, whence); + current_off = Fseek(0, (int) fd, SEEK_CUR); /* find out where we are */ + if (whence == SEEK_SET) + expected_off = off; + else + expected_off = off + current_off; + new_off = Fseek(off, (int) fd, whence); + if (new_off == expected_off) + return new_off; + /* otherwise extend file -- zero filling the hole */ + if (new_off < 0) /* error? */ + new_off = Fseek(0, (int) fd, SEEK_END); /* go to eof */ + _TIFFmemset(buf, 0, sizeof(buf)); + while (expected_off > new_off) { + off = expected_off - new_off; + if (off > sizeof(buf)) + off = sizeof(buf); + if ((current_off = Fwrite((int) fd, off, buf)) != off) + return (current_off > 0) ? + new_off + current_off : new_off; + new_off += off; + } + return new_off; +} + +static int +_tiffCloseProc(thandle_t fd) +{ + long r; + + r = Fclose((int) fd); + if (r < 0) { + errno = (int)-r; + r = -1; + } + return (int)r; +} + +static toff_t +_tiffSizeProc(thandle_t fd) +{ + long pos, eof; + + pos = Fseek(0, (int) fd, SEEK_CUR); + eof = Fseek(0, (int) fd, SEEK_END); + Fseek(pos, (int) fd, SEEK_SET); + return eof; +} + +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ +} + +/* +* Open a TIFF file descriptor for read/writing. +*/ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, + (thandle_t) fd, + _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, + _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); + if (tif) + tif->tif_fd = fd; + return (tif); +} + +/* +* Open a TIFF file for read/writing. +*/ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + int m; + long fd; + + m = _TIFFgetMode(mode, module); + if (m == -1) + return ((TIFF*)0); + if (m & O_TRUNC) { + fd = Fcreate(name, 0); + } else { + fd = Fopen(name, m & O_ACCMODE); + if (fd == AEFILNF && m & O_CREAT) + fd = Fcreate(name, 0); + } + if (fd < 0) + errno = (int)fd; + if (fd < 0) { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF*)0); + } + return (TIFFFdOpen(fd, name, mode)); +} + +#include <stdlib.h> + +tdata_t +_TIFFmalloc(tsize_t s) +{ + return (malloc((size_t) s)); +} + +void +_TIFFfree(tdata_t p) +{ + free(p); +} + +tdata_t +_TIFFrealloc(tdata_t p, tsize_t s) +{ + return (realloc(p, (size_t) s)); +} + +void +_TIFFmemset(tdata_t p, int v, size_t c) +{ + memset(p, v, (size_t) c); +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, size_t c) +{ + memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + return (memcmp(p1, p2, (size_t) c)); +} + +static void +atariWarningHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFwarningHandler = atariWarningHandler; + +static void +atariErrorHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFerrorHandler = atariErrorHandler; +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_aux.c b/tiff/libtiff/tif_aux.c new file mode 100644 index 0000000..272f0d9 --- /dev/null +++ b/tiff/libtiff/tif_aux.c @@ -0,0 +1,290 @@ +/* $Id: tif_aux.c,v 1.20.2.3 2010-06-09 21:15:27 bfriesen Exp $ */ + +/* + * Copyright (c) 1991-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Auxiliary Support Routines. + */ +#include "tiffiop.h" +#include "tif_predict.h" +#include <math.h> + +tdata_t +_TIFFCheckRealloc(TIFF* tif, tdata_t buffer, + size_t nmemb, size_t elem_size, const char* what) +{ + tdata_t cp = NULL; + tsize_t bytes = nmemb * elem_size; + + /* + * XXX: Check for integer overflow. + */ + if (nmemb && elem_size && bytes / elem_size == nmemb) + cp = _TIFFrealloc(buffer, bytes); + + if (cp == NULL) + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Failed to allocate memory for %s " + "(%ld elements of %ld bytes each)", + what,(long) nmemb, (long) elem_size); + + return cp; +} + +tdata_t +_TIFFCheckMalloc(TIFF* tif, size_t nmemb, size_t elem_size, const char* what) +{ + return _TIFFCheckRealloc(tif, NULL, nmemb, elem_size, what); +} + +static int +TIFFDefaultTransferFunction(TIFFDirectory* td) +{ + uint16 **tf = td->td_transferfunction; + tsize_t i, n, nbytes; + + tf[0] = tf[1] = tf[2] = 0; + if (td->td_bitspersample >= sizeof(tsize_t) * 8 - 2) + return 0; + + n = 1<<td->td_bitspersample; + nbytes = n * sizeof (uint16); + if (!(tf[0] = (uint16 *)_TIFFmalloc(nbytes))) + return 0; + tf[0][0] = 0; + for (i = 1; i < n; i++) { + double t = (double)i/((double) n-1.); + tf[0][i] = (uint16)floor(65535.*pow(t, 2.2) + .5); + } + + if (td->td_samplesperpixel - td->td_extrasamples > 1) { + if (!(tf[1] = (uint16 *)_TIFFmalloc(nbytes))) + goto bad; + _TIFFmemcpy(tf[1], tf[0], nbytes); + if (!(tf[2] = (uint16 *)_TIFFmalloc(nbytes))) + goto bad; + _TIFFmemcpy(tf[2], tf[0], nbytes); + } + return 1; + +bad: + if (tf[0]) + _TIFFfree(tf[0]); + if (tf[1]) + _TIFFfree(tf[1]); + if (tf[2]) + _TIFFfree(tf[2]); + tf[0] = tf[1] = tf[2] = 0; + return 0; +} + +static int +TIFFDefaultRefBlackWhite(TIFFDirectory* td) +{ + int i; + + if (!(td->td_refblackwhite = (float *)_TIFFmalloc(6*sizeof (float)))) + return 0; + if (td->td_photometric == PHOTOMETRIC_YCBCR) { + /* + * YCbCr (Class Y) images must have the ReferenceBlackWhite + * tag set. Fix the broken images, which lacks that tag. + */ + td->td_refblackwhite[0] = 0.0F; + td->td_refblackwhite[1] = td->td_refblackwhite[3] = + td->td_refblackwhite[5] = 255.0F; + td->td_refblackwhite[2] = td->td_refblackwhite[4] = 128.0F; + } else { + /* + * Assume RGB (Class R) + */ + for (i = 0; i < 3; i++) { + td->td_refblackwhite[2*i+0] = 0; + td->td_refblackwhite[2*i+1] = + (float)((1L<<td->td_bitspersample)-1L); + } + } + return 1; +} + +/* + * Like TIFFGetField, but return any default + * value if the tag is not present in the directory. + * + * NB: We use the value in the directory, rather than + * explcit values so that defaults exist only one + * place in the library -- in TIFFDefaultDirectory. + */ +int +TIFFVGetFieldDefaulted(TIFF* tif, ttag_t tag, va_list ap) +{ + TIFFDirectory *td = &tif->tif_dir; + + if (TIFFVGetField(tif, tag, ap)) + return (1); + switch (tag) { + case TIFFTAG_SUBFILETYPE: + *va_arg(ap, uint32 *) = td->td_subfiletype; + return (1); + case TIFFTAG_BITSPERSAMPLE: + *va_arg(ap, uint16 *) = td->td_bitspersample; + return (1); + case TIFFTAG_THRESHHOLDING: + *va_arg(ap, uint16 *) = td->td_threshholding; + return (1); + case TIFFTAG_FILLORDER: + *va_arg(ap, uint16 *) = td->td_fillorder; + return (1); + case TIFFTAG_ORIENTATION: + *va_arg(ap, uint16 *) = td->td_orientation; + return (1); + case TIFFTAG_SAMPLESPERPIXEL: + *va_arg(ap, uint16 *) = td->td_samplesperpixel; + return (1); + case TIFFTAG_ROWSPERSTRIP: + *va_arg(ap, uint32 *) = td->td_rowsperstrip; + return (1); + case TIFFTAG_MINSAMPLEVALUE: + *va_arg(ap, uint16 *) = td->td_minsamplevalue; + return (1); + case TIFFTAG_MAXSAMPLEVALUE: + *va_arg(ap, uint16 *) = td->td_maxsamplevalue; + return (1); + case TIFFTAG_PLANARCONFIG: + *va_arg(ap, uint16 *) = td->td_planarconfig; + return (1); + case TIFFTAG_RESOLUTIONUNIT: + *va_arg(ap, uint16 *) = td->td_resolutionunit; + return (1); + case TIFFTAG_PREDICTOR: + { + TIFFPredictorState* sp = (TIFFPredictorState*) tif->tif_data; + *va_arg(ap, uint16*) = (uint16) sp->predictor; + return 1; + } + case TIFFTAG_DOTRANGE: + *va_arg(ap, uint16 *) = 0; + *va_arg(ap, uint16 *) = (1<<td->td_bitspersample)-1; + return (1); + case TIFFTAG_INKSET: + *va_arg(ap, uint16 *) = INKSET_CMYK; + return 1; + case TIFFTAG_NUMBEROFINKS: + *va_arg(ap, uint16 *) = 4; + return (1); + case TIFFTAG_EXTRASAMPLES: + *va_arg(ap, uint16 *) = td->td_extrasamples; + *va_arg(ap, uint16 **) = td->td_sampleinfo; + return (1); + case TIFFTAG_MATTEING: + *va_arg(ap, uint16 *) = + (td->td_extrasamples == 1 && + td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); + return (1); + case TIFFTAG_TILEDEPTH: + *va_arg(ap, uint32 *) = td->td_tiledepth; + return (1); + case TIFFTAG_DATATYPE: + *va_arg(ap, uint16 *) = td->td_sampleformat-1; + return (1); + case TIFFTAG_SAMPLEFORMAT: + *va_arg(ap, uint16 *) = td->td_sampleformat; + return(1); + case TIFFTAG_IMAGEDEPTH: + *va_arg(ap, uint32 *) = td->td_imagedepth; + return (1); + case TIFFTAG_YCBCRCOEFFICIENTS: + { + /* defaults are from CCIR Recommendation 601-1 */ + static float ycbcrcoeffs[] = { 0.299f, 0.587f, 0.114f }; + *va_arg(ap, float **) = ycbcrcoeffs; + return 1; + } + case TIFFTAG_YCBCRSUBSAMPLING: + *va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[0]; + *va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[1]; + return (1); + case TIFFTAG_YCBCRPOSITIONING: + *va_arg(ap, uint16 *) = td->td_ycbcrpositioning; + return (1); + case TIFFTAG_WHITEPOINT: + { + static float whitepoint[2]; + + /* TIFF 6.0 specification tells that it is no default + value for the WhitePoint, but AdobePhotoshop TIFF + Technical Note tells that it should be CIE D50. */ + whitepoint[0] = D50_X0 / (D50_X0 + D50_Y0 + D50_Z0); + whitepoint[1] = D50_Y0 / (D50_X0 + D50_Y0 + D50_Z0); + *va_arg(ap, float **) = whitepoint; + return 1; + } + case TIFFTAG_TRANSFERFUNCTION: + if (!td->td_transferfunction[0] && + !TIFFDefaultTransferFunction(td)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "No space for \"TransferFunction\" tag"); + return (0); + } + *va_arg(ap, uint16 **) = td->td_transferfunction[0]; + if (td->td_samplesperpixel - td->td_extrasamples > 1) { + *va_arg(ap, uint16 **) = td->td_transferfunction[1]; + *va_arg(ap, uint16 **) = td->td_transferfunction[2]; + } + return (1); + case TIFFTAG_REFERENCEBLACKWHITE: + if (!td->td_refblackwhite && !TIFFDefaultRefBlackWhite(td)) + return (0); + *va_arg(ap, float **) = td->td_refblackwhite; + return (1); + } + return 0; +} + +/* + * Like TIFFGetField, but return any default + * value if the tag is not present in the directory. + */ +int +TIFFGetFieldDefaulted(TIFF* tif, ttag_t tag, ...) +{ + int ok; + va_list ap; + + va_start(ap, tag); + ok = TIFFVGetFieldDefaulted(tif, tag, ap); + va_end(ap); + return (ok); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_close.c b/tiff/libtiff/tif_close.c new file mode 100644 index 0000000..02591ba --- /dev/null +++ b/tiff/libtiff/tif_close.c @@ -0,0 +1,126 @@ +/* $Id: tif_close.c,v 1.10.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + */ +#include "tiffiop.h" + +/************************************************************************/ +/* TIFFCleanup() */ +/************************************************************************/ + +/** + * Auxiliary function to free the TIFF structure. Given structure will be + * completetly freed, so you should save opened file handle and pointer + * to the close procedure in external variables before calling + * _TIFFCleanup(), if you will need these ones to close the file. + * + * @param tif A TIFF pointer. + */ + +void +TIFFCleanup(TIFF* tif) +{ + if (tif->tif_mode != O_RDONLY) + /* + * Flush buffered data and directory (if dirty). + */ + TIFFFlush(tif); + (*tif->tif_cleanup)(tif); + TIFFFreeDirectory(tif); + + if (tif->tif_dirlist) + _TIFFfree(tif->tif_dirlist); + + /* Clean up client info links */ + while( tif->tif_clientinfo ) + { + TIFFClientInfoLink *link = tif->tif_clientinfo; + + tif->tif_clientinfo = link->next; + _TIFFfree( link->name ); + _TIFFfree( link ); + } + + if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER)) + _TIFFfree(tif->tif_rawdata); + if (isMapped(tif)) + TIFFUnmapFileContents(tif, tif->tif_base, tif->tif_size); + + /* Clean up custom fields */ + if (tif->tif_nfields > 0) + { + size_t i; + + for (i = 0; i < tif->tif_nfields; i++) + { + TIFFFieldInfo *fld = tif->tif_fieldinfo[i]; + if (fld->field_bit == FIELD_CUSTOM && + strncmp("Tag ", fld->field_name, 4) == 0) + { + _TIFFfree(fld->field_name); + _TIFFfree(fld); + } + } + + _TIFFfree(tif->tif_fieldinfo); + } + + _TIFFfree(tif); +} + +/************************************************************************/ +/* TIFFClose() */ +/************************************************************************/ + +/** + * Close a previously opened TIFF file. + * + * TIFFClose closes a file that was previously opened with TIFFOpen(). + * Any buffered data are flushed to the file, including the contents of + * the current directory (if modified); and all resources are reclaimed. + * + * @param tif A TIFF pointer. + */ + +void +TIFFClose(TIFF* tif) +{ + TIFFCloseProc closeproc = tif->tif_closeproc; + thandle_t fd = tif->tif_clientdata; + + TIFFCleanup(tif); + (void) (*closeproc)(fd); +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_codec.c b/tiff/libtiff/tif_codec.c new file mode 100644 index 0000000..d5c6fd1 --- /dev/null +++ b/tiff/libtiff/tif_codec.c @@ -0,0 +1,160 @@ +/* $Id: tif_codec.c,v 1.10.2.2 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library + * + * Builtin Compression Scheme Configuration Support. + */ +#include "tiffiop.h" + +static int NotConfigured(TIFF*, int); + +#ifndef LZW_SUPPORT +#define TIFFInitLZW NotConfigured +#endif +#ifndef PACKBITS_SUPPORT +#define TIFFInitPackBits NotConfigured +#endif +#ifndef THUNDER_SUPPORT +#define TIFFInitThunderScan NotConfigured +#endif +#ifndef NEXT_SUPPORT +#define TIFFInitNeXT NotConfigured +#endif +#ifndef JPEG_SUPPORT +#define TIFFInitJPEG NotConfigured +#endif +#ifndef OJPEG_SUPPORT +#define TIFFInitOJPEG NotConfigured +#endif +#ifndef CCITT_SUPPORT +#define TIFFInitCCITTRLE NotConfigured +#define TIFFInitCCITTRLEW NotConfigured +#define TIFFInitCCITTFax3 NotConfigured +#define TIFFInitCCITTFax4 NotConfigured +#endif +#ifndef JBIG_SUPPORT +#define TIFFInitJBIG NotConfigured +#endif +#ifndef ZIP_SUPPORT +#define TIFFInitZIP NotConfigured +#endif +#ifndef PIXARLOG_SUPPORT +#define TIFFInitPixarLog NotConfigured +#endif +#ifndef LOGLUV_SUPPORT +#define TIFFInitSGILog NotConfigured +#endif + +/* + * Compression schemes statically built into the library. + */ +#ifdef VMS +const TIFFCodec _TIFFBuiltinCODECS[] = { +#else +TIFFCodec _TIFFBuiltinCODECS[] = { +#endif + { "None", COMPRESSION_NONE, TIFFInitDumpMode }, + { "LZW", COMPRESSION_LZW, TIFFInitLZW }, + { "PackBits", COMPRESSION_PACKBITS, TIFFInitPackBits }, + { "ThunderScan", COMPRESSION_THUNDERSCAN,TIFFInitThunderScan }, + { "NeXT", COMPRESSION_NEXT, TIFFInitNeXT }, + { "JPEG", COMPRESSION_JPEG, TIFFInitJPEG }, + { "Old-style JPEG", COMPRESSION_OJPEG, TIFFInitOJPEG }, + { "CCITT RLE", COMPRESSION_CCITTRLE, TIFFInitCCITTRLE }, + { "CCITT RLE/W", COMPRESSION_CCITTRLEW, TIFFInitCCITTRLEW }, + { "CCITT Group 3", COMPRESSION_CCITTFAX3, TIFFInitCCITTFax3 }, + { "CCITT Group 4", COMPRESSION_CCITTFAX4, TIFFInitCCITTFax4 }, + { "ISO JBIG", COMPRESSION_JBIG, TIFFInitJBIG }, + { "Deflate", COMPRESSION_DEFLATE, TIFFInitZIP }, + { "AdobeDeflate", COMPRESSION_ADOBE_DEFLATE , TIFFInitZIP }, + { "PixarLog", COMPRESSION_PIXARLOG, TIFFInitPixarLog }, + { "SGILog", COMPRESSION_SGILOG, TIFFInitSGILog }, + { "SGILog24", COMPRESSION_SGILOG24, TIFFInitSGILog }, + { NULL, 0, NULL } +}; + +static int +_notConfigured(TIFF* tif) +{ + const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); + char compression_code[20]; + + sprintf( compression_code, "%d", tif->tif_dir.td_compression ); + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%s compression support is not configured", + c ? c->name : compression_code ); + return (0); +} + +static int +NotConfigured(TIFF* tif, int scheme) +{ + (void) scheme; + + tif->tif_decodestatus = FALSE; + tif->tif_setupdecode = _notConfigured; + tif->tif_encodestatus = FALSE; + tif->tif_setupencode = _notConfigured; + return (1); +} + +/************************************************************************/ +/* TIFFIsCODECConfigured() */ +/************************************************************************/ + +/** + * Check whether we have working codec for the specific coding scheme. + * + * @return returns 1 if the codec is configured and working. Otherwise + * 0 will be returned. + */ + +int +TIFFIsCODECConfigured(uint16 scheme) +{ + const TIFFCodec* codec = TIFFFindCODEC(scheme); + + if(codec == NULL) { + return 0; + } + if(codec->init == NULL) { + return 0; + } + if(codec->init != NotConfigured){ + return 1; + } + return 0; +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_color.c b/tiff/libtiff/tif_color.c new file mode 100644 index 0000000..02eb346 --- /dev/null +++ b/tiff/libtiff/tif_color.c @@ -0,0 +1,282 @@ +/* $Id: tif_color.c,v 1.12.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * CIE L*a*b* to CIE XYZ and CIE XYZ to RGB conversion routines are taken + * from the VIPS library (http://www.vips.ecs.soton.ac.uk) with + * the permission of John Cupitt, the VIPS author. + */ + +/* + * TIFF Library. + * + * Color space conversion routines. + */ + +#include "tiffiop.h" +#include <math.h> + +/* + * Convert color value from the CIE L*a*b* 1976 space to CIE XYZ. + */ +void +TIFFCIELabToXYZ(TIFFCIELabToRGB *cielab, uint32 l, int32 a, int32 b, + float *X, float *Y, float *Z) +{ + float L = (float)l * 100.0F / 255.0F; + float cby, tmp; + + if( L < 8.856F ) { + *Y = (L * cielab->Y0) / 903.292F; + cby = 7.787F * (*Y / cielab->Y0) + 16.0F / 116.0F; + } else { + cby = (L + 16.0F) / 116.0F; + *Y = cielab->Y0 * cby * cby * cby; + } + + tmp = (float)a / 500.0F + cby; + if( tmp < 0.2069F ) + *X = cielab->X0 * (tmp - 0.13793F) / 7.787F; + else + *X = cielab->X0 * tmp * tmp * tmp; + + tmp = cby - (float)b / 200.0F; + if( tmp < 0.2069F ) + *Z = cielab->Z0 * (tmp - 0.13793F) / 7.787F; + else + *Z = cielab->Z0 * tmp * tmp * tmp; +} + +#define RINT(R) ((uint32)((R)>0?((R)+0.5):((R)-0.5))) +/* + * Convert color value from the XYZ space to RGB. + */ +void +TIFFXYZToRGB(TIFFCIELabToRGB *cielab, float X, float Y, float Z, + uint32 *r, uint32 *g, uint32 *b) +{ + int i; + float Yr, Yg, Yb; + float *matrix = &cielab->display.d_mat[0][0]; + + /* Multiply through the matrix to get luminosity values. */ + Yr = matrix[0] * X + matrix[1] * Y + matrix[2] * Z; + Yg = matrix[3] * X + matrix[4] * Y + matrix[5] * Z; + Yb = matrix[6] * X + matrix[7] * Y + matrix[8] * Z; + + /* Clip input */ + Yr = TIFFmax(Yr, cielab->display.d_Y0R); + Yg = TIFFmax(Yg, cielab->display.d_Y0G); + Yb = TIFFmax(Yb, cielab->display.d_Y0B); + + /* Avoid overflow in case of wrong input values */ + Yr = TIFFmin(Yr, cielab->display.d_YCR); + Yg = TIFFmin(Yg, cielab->display.d_YCG); + Yb = TIFFmin(Yb, cielab->display.d_YCB); + + /* Turn luminosity to colour value. */ + i = (int)((Yr - cielab->display.d_Y0R) / cielab->rstep); + i = TIFFmin(cielab->range, i); + *r = RINT(cielab->Yr2r[i]); + + i = (int)((Yg - cielab->display.d_Y0G) / cielab->gstep); + i = TIFFmin(cielab->range, i); + *g = RINT(cielab->Yg2g[i]); + + i = (int)((Yb - cielab->display.d_Y0B) / cielab->bstep); + i = TIFFmin(cielab->range, i); + *b = RINT(cielab->Yb2b[i]); + + /* Clip output. */ + *r = TIFFmin(*r, cielab->display.d_Vrwr); + *g = TIFFmin(*g, cielab->display.d_Vrwg); + *b = TIFFmin(*b, cielab->display.d_Vrwb); +} +#undef RINT + +/* + * Allocate conversion state structures and make look_up tables for + * the Yr,Yb,Yg <=> r,g,b conversions. + */ +int +TIFFCIELabToRGBInit(TIFFCIELabToRGB* cielab, + TIFFDisplay *display, float *refWhite) +{ + int i; + double gamma; + + cielab->range = CIELABTORGB_TABLE_RANGE; + + _TIFFmemcpy(&cielab->display, display, sizeof(TIFFDisplay)); + + /* Red */ + gamma = 1.0 / cielab->display.d_gammaR ; + cielab->rstep = + (cielab->display.d_YCR - cielab->display.d_Y0R) / cielab->range; + for(i = 0; i <= cielab->range; i++) { + cielab->Yr2r[i] = cielab->display.d_Vrwr + * ((float)pow((double)i / cielab->range, gamma)); + } + + /* Green */ + gamma = 1.0 / cielab->display.d_gammaG ; + cielab->gstep = + (cielab->display.d_YCR - cielab->display.d_Y0R) / cielab->range; + for(i = 0; i <= cielab->range; i++) { + cielab->Yg2g[i] = cielab->display.d_Vrwg + * ((float)pow((double)i / cielab->range, gamma)); + } + + /* Blue */ + gamma = 1.0 / cielab->display.d_gammaB ; + cielab->bstep = + (cielab->display.d_YCR - cielab->display.d_Y0R) / cielab->range; + for(i = 0; i <= cielab->range; i++) { + cielab->Yb2b[i] = cielab->display.d_Vrwb + * ((float)pow((double)i / cielab->range, gamma)); + } + + /* Init reference white point */ + cielab->X0 = refWhite[0]; + cielab->Y0 = refWhite[1]; + cielab->Z0 = refWhite[2]; + + return 0; +} + +/* + * Convert color value from the YCbCr space to CIE XYZ. + * The colorspace conversion algorithm comes from the IJG v5a code; + * see below for more information on how it works. + */ +#define SHIFT 16 +#define FIX(x) ((int32)((x) * (1L<<SHIFT) + 0.5)) +#define ONE_HALF ((int32)(1<<(SHIFT-1))) +#define Code2V(c, RB, RW, CR) ((((c)-(int32)(RB))*(float)(CR))/(float)(((RW)-(RB)) ? ((RW)-(RB)) : 1)) +#define CLAMP(f,min,max) ((f)<(min)?(min):(f)>(max)?(max):(f)) +#define HICLAMP(f,max) ((f)>(max)?(max):(f)) + +void +TIFFYCbCrtoRGB(TIFFYCbCrToRGB *ycbcr, uint32 Y, int32 Cb, int32 Cr, + uint32 *r, uint32 *g, uint32 *b) +{ + /* XXX: Only 8-bit YCbCr input supported for now */ + Y = HICLAMP(Y, 255), Cb = CLAMP(Cb, 0, 255), Cr = CLAMP(Cr, 0, 255); + + *r = ycbcr->clamptab[ycbcr->Y_tab[Y] + ycbcr->Cr_r_tab[Cr]]; + *g = ycbcr->clamptab[ycbcr->Y_tab[Y] + + (int)((ycbcr->Cb_g_tab[Cb] + ycbcr->Cr_g_tab[Cr]) >> SHIFT)]; + *b = ycbcr->clamptab[ycbcr->Y_tab[Y] + ycbcr->Cb_b_tab[Cb]]; +} + +/* + * Initialize the YCbCr->RGB conversion tables. The conversion + * is done according to the 6.0 spec: + * + * R = Y + Cr*(2 - 2*LumaRed) + * B = Y + Cb*(2 - 2*LumaBlue) + * G = Y + * - LumaBlue*Cb*(2-2*LumaBlue)/LumaGreen + * - LumaRed*Cr*(2-2*LumaRed)/LumaGreen + * + * To avoid floating point arithmetic the fractional constants that + * come out of the equations are represented as fixed point values + * in the range 0...2^16. We also eliminate multiplications by + * pre-calculating possible values indexed by Cb and Cr (this code + * assumes conversion is being done for 8-bit samples). + */ +int +TIFFYCbCrToRGBInit(TIFFYCbCrToRGB* ycbcr, float *luma, float *refBlackWhite) +{ + TIFFRGBValue* clamptab; + int i; + +#define LumaRed luma[0] +#define LumaGreen luma[1] +#define LumaBlue luma[2] + + clamptab = (TIFFRGBValue*)( + (tidata_t) ycbcr+TIFFroundup(sizeof (TIFFYCbCrToRGB), sizeof (long))); + _TIFFmemset(clamptab, 0, 256); /* v < 0 => 0 */ + ycbcr->clamptab = (clamptab += 256); + for (i = 0; i < 256; i++) + clamptab[i] = (TIFFRGBValue) i; + _TIFFmemset(clamptab+256, 255, 2*256); /* v > 255 => 255 */ + ycbcr->Cr_r_tab = (int*) (clamptab + 3*256); + ycbcr->Cb_b_tab = ycbcr->Cr_r_tab + 256; + ycbcr->Cr_g_tab = (int32*) (ycbcr->Cb_b_tab + 256); + ycbcr->Cb_g_tab = ycbcr->Cr_g_tab + 256; + ycbcr->Y_tab = ycbcr->Cb_g_tab + 256; + + { float f1 = 2-2*LumaRed; int32 D1 = FIX(f1); + float f2 = LumaRed*f1/LumaGreen; int32 D2 = -FIX(f2); + float f3 = 2-2*LumaBlue; int32 D3 = FIX(f3); + float f4 = LumaBlue*f3/LumaGreen; int32 D4 = -FIX(f4); + int x; + +#undef LumaBlue +#undef LumaGreen +#undef LumaRed + + /* + * i is the actual input pixel value in the range 0..255 + * Cb and Cr values are in the range -128..127 (actually + * they are in a range defined by the ReferenceBlackWhite + * tag) so there is some range shifting to do here when + * constructing tables indexed by the raw pixel data. + */ + for (i = 0, x = -128; i < 256; i++, x++) { + int32 Cr = (int32)Code2V(x, refBlackWhite[4] - 128.0F, + refBlackWhite[5] - 128.0F, 127); + int32 Cb = (int32)Code2V(x, refBlackWhite[2] - 128.0F, + refBlackWhite[3] - 128.0F, 127); + + ycbcr->Cr_r_tab[i] = (int32)((D1*Cr + ONE_HALF)>>SHIFT); + ycbcr->Cb_b_tab[i] = (int32)((D3*Cb + ONE_HALF)>>SHIFT); + ycbcr->Cr_g_tab[i] = D2*Cr; + ycbcr->Cb_g_tab[i] = D4*Cb + ONE_HALF; + ycbcr->Y_tab[i] = + (int32)Code2V(x + 128, refBlackWhite[0], refBlackWhite[1], 255); + } + } + + return 0; +} +#undef HICLAMP +#undef CLAMP +#undef Code2V +#undef SHIFT +#undef ONE_HALF +#undef FIX + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_compress.c b/tiff/libtiff/tif_compress.c new file mode 100644 index 0000000..0ce509b --- /dev/null +++ b/tiff/libtiff/tif_compress.c @@ -0,0 +1,295 @@ +/* $Id: tif_compress.c,v 1.13.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library + * + * Compression Scheme Configuration Support. + */ +#include "tiffiop.h" + +static int +TIFFNoEncode(TIFF* tif, const char* method) +{ + const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); + + if (c) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%s %s encoding is not implemented", + c->name, method); + } else { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression scheme %u %s encoding is not implemented", + tif->tif_dir.td_compression, method); + } + return (-1); +} + +int +_TIFFNoRowEncode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) pp; (void) cc; (void) s; + return (TIFFNoEncode(tif, "scanline")); +} + +int +_TIFFNoStripEncode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) pp; (void) cc; (void) s; + return (TIFFNoEncode(tif, "strip")); +} + +int +_TIFFNoTileEncode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) pp; (void) cc; (void) s; + return (TIFFNoEncode(tif, "tile")); +} + +static int +TIFFNoDecode(TIFF* tif, const char* method) +{ + const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); + + if (c) + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%s %s decoding is not implemented", + c->name, method); + else + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression scheme %u %s decoding is not implemented", + tif->tif_dir.td_compression, method); + return (-1); +} + +int +_TIFFNoRowDecode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) pp; (void) cc; (void) s; + return (TIFFNoDecode(tif, "scanline")); +} + +int +_TIFFNoStripDecode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) pp; (void) cc; (void) s; + return (TIFFNoDecode(tif, "strip")); +} + +int +_TIFFNoTileDecode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) pp; (void) cc; (void) s; + return (TIFFNoDecode(tif, "tile")); +} + +int +_TIFFNoSeek(TIFF* tif, uint32 off) +{ + (void) off; + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression algorithm does not support random access"); + return (0); +} + +int +_TIFFNoPreCode(TIFF* tif, tsample_t s) +{ + (void) tif; (void) s; + return (1); +} + +static int _TIFFtrue(TIFF* tif) { (void) tif; return (1); } +static void _TIFFvoid(TIFF* tif) { (void) tif; } + +void +_TIFFSetDefaultCompressionState(TIFF* tif) +{ + tif->tif_decodestatus = TRUE; + tif->tif_setupdecode = _TIFFtrue; + tif->tif_predecode = _TIFFNoPreCode; + tif->tif_decoderow = _TIFFNoRowDecode; + tif->tif_decodestrip = _TIFFNoStripDecode; + tif->tif_decodetile = _TIFFNoTileDecode; + tif->tif_encodestatus = TRUE; + tif->tif_setupencode = _TIFFtrue; + tif->tif_preencode = _TIFFNoPreCode; + tif->tif_postencode = _TIFFtrue; + tif->tif_encoderow = _TIFFNoRowEncode; + tif->tif_encodestrip = _TIFFNoStripEncode; + tif->tif_encodetile = _TIFFNoTileEncode; + tif->tif_close = _TIFFvoid; + tif->tif_seek = _TIFFNoSeek; + tif->tif_cleanup = _TIFFvoid; + tif->tif_defstripsize = _TIFFDefaultStripSize; + tif->tif_deftilesize = _TIFFDefaultTileSize; + tif->tif_flags &= ~(TIFF_NOBITREV|TIFF_NOREADRAW); +} + +int +TIFFSetCompressionScheme(TIFF* tif, int scheme) +{ + const TIFFCodec *c = TIFFFindCODEC((uint16) scheme); + + _TIFFSetDefaultCompressionState(tif); + /* + * Don't treat an unknown compression scheme as an error. + * This permits applications to open files with data that + * the library does not have builtin support for, but which + * may still be meaningful. + */ + return (c ? (*c->init)(tif, scheme) : 1); +} + +/* + * Other compression schemes may be registered. Registered + * schemes can also override the builtin versions provided + * by this library. + */ +typedef struct _codec { + struct _codec* next; + TIFFCodec* info; +} codec_t; +static codec_t* registeredCODECS = NULL; + +const TIFFCodec* +TIFFFindCODEC(uint16 scheme) +{ + const TIFFCodec* c; + codec_t* cd; + + for (cd = registeredCODECS; cd; cd = cd->next) + if (cd->info->scheme == scheme) + return ((const TIFFCodec*) cd->info); + for (c = _TIFFBuiltinCODECS; c->name; c++) + if (c->scheme == scheme) + return (c); + return ((const TIFFCodec*) 0); +} + +TIFFCodec* +TIFFRegisterCODEC(uint16 scheme, const char* name, TIFFInitMethod init) +{ + codec_t* cd = (codec_t*) + _TIFFmalloc(sizeof (codec_t) + sizeof (TIFFCodec) + strlen(name)+1); + + if (cd != NULL) { + cd->info = (TIFFCodec*) ((tidata_t) cd + sizeof (codec_t)); + cd->info->name = (char*) + ((tidata_t) cd->info + sizeof (TIFFCodec)); + strcpy(cd->info->name, name); + cd->info->scheme = scheme; + cd->info->init = init; + cd->next = registeredCODECS; + registeredCODECS = cd; + } else { + TIFFErrorExt(0, "TIFFRegisterCODEC", + "No space to register compression scheme %s", name); + return NULL; + } + return (cd->info); +} + +void +TIFFUnRegisterCODEC(TIFFCodec* c) +{ + codec_t* cd; + codec_t** pcd; + + for (pcd = ®isteredCODECS; (cd = *pcd); pcd = &cd->next) + if (cd->info == c) { + *pcd = cd->next; + _TIFFfree(cd); + return; + } + TIFFErrorExt(0, "TIFFUnRegisterCODEC", + "Cannot remove compression scheme %s; not registered", c->name); +} + +/************************************************************************/ +/* TIFFGetConfisuredCODECs() */ +/************************************************************************/ + +/** + * Get list of configured codecs, both built-in and registered by user. + * Caller is responsible to free this structure. + * + * @return returns array of TIFFCodec records (the last record should be NULL) + * or NULL if function failed. + */ + +TIFFCodec* +TIFFGetConfiguredCODECs() +{ + int i = 1; + codec_t *cd; + const TIFFCodec *c; + TIFFCodec *codecs = NULL, *new_codecs; + + for (cd = registeredCODECS; cd; cd = cd->next) { + new_codecs = (TIFFCodec *) + _TIFFrealloc(codecs, i * sizeof(TIFFCodec)); + if (!new_codecs) { + _TIFFfree (codecs); + return NULL; + } + codecs = new_codecs; + _TIFFmemcpy(codecs + i - 1, cd, sizeof(TIFFCodec)); + i++; + } + for (c = _TIFFBuiltinCODECS; c->name; c++) { + if (TIFFIsCODECConfigured(c->scheme)) { + new_codecs = (TIFFCodec *) + _TIFFrealloc(codecs, i * sizeof(TIFFCodec)); + if (!new_codecs) { + _TIFFfree (codecs); + return NULL; + } + codecs = new_codecs; + _TIFFmemcpy(codecs + i - 1, (const tdata_t)c, sizeof(TIFFCodec)); + i++; + } + } + + new_codecs = (TIFFCodec *) _TIFFrealloc(codecs, i * sizeof(TIFFCodec)); + if (!new_codecs) { + _TIFFfree (codecs); + return NULL; + } + codecs = new_codecs; + _TIFFmemset(codecs + i - 1, 0, sizeof(TIFFCodec)); + + return codecs; +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_config.h-vms b/tiff/libtiff/tif_config.h-vms new file mode 100644 index 0000000..d653bd8 --- /dev/null +++ b/tiff/libtiff/tif_config.h-vms @@ -0,0 +1,46 @@ +/* Define to 1 if you have the <assert.h> header file. */ +#define HAVE_ASSERT_H 1 + +/* Define to 1 if you have the <fcntl.h> header file. */ +#define HAVE_FCNTL_H 1 + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#define HAVE_IEEEFP 1 + +#define HAVE_UNISTD_H 1 + +#define HAVE_STRING_H 1 +/* Define to 1 if you have the <sys/types.h> header file. */ +#define HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have the <io.h> header file. */ +//#define HAVE_IO_H 1 + +/* Define to 1 if you have the <search.h> header file. */ +//#define HAVE_SEARCH_H 1 + +/* The size of a `int', as computed by sizeof. */ +#define SIZEOF_INT 4 + +/* The size of a `long', as computed by sizeof. */ +#define SIZEOF_LONG 4 + +/* Set the native cpu bit order */ +#define HOST_FILLORDER FILLORDER_LSB2MSB + +/* Define to 1 if your processor stores words with the most significant byte + first (like Motorola and SPARC, unlike Intel and VAX). */ +/* #undef WORDS_BIGENDIAN */ + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +/* +#ifndef __cplusplus +# ifndef inline +# define inline __inline +# endif +#endif +*/ + +// #define lfind _lfind diff --git a/tiff/libtiff/tif_config.h.in b/tiff/libtiff/tif_config.h.in new file mode 100644 index 0000000..01e54de --- /dev/null +++ b/tiff/libtiff/tif_config.h.in @@ -0,0 +1,309 @@ +/* libtiff/tif_config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if building universal (internal helper macro) */ +#undef AC_APPLE_UNIVERSAL_BUILD + +/* Support CCITT Group 3 & 4 algorithms */ +#undef CCITT_SUPPORT + +/* Pick up YCbCr subsampling info from the JPEG data stream to support files + lacking the tag (default enabled). */ +#undef CHECK_JPEG_YCBCR_SUBSAMPLING + +/* Support C++ stream API (requires C++ compiler) */ +#undef CXX_SUPPORT + +/* Treat extra sample as alpha (default enabled). The RGBA interface will + treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many + packages produce RGBA files but don't mark the alpha properly. */ +#undef DEFAULT_EXTRASAMPLE_AS_ALPHA + +/* Use the Apple OpenGL framework. */ +#undef HAVE_APPLE_OPENGL_FRAMEWORK + +/* Define to 1 if you have the <assert.h> header file. */ +#undef HAVE_ASSERT_H + +/* Define to 1 if you have the <dlfcn.h> header file. */ +#undef HAVE_DLFCN_H + +/* Define to 1 if you have the <fcntl.h> header file. */ +#undef HAVE_FCNTL_H + +/* Define to 1 if you have the `floor' function. */ +#undef HAVE_FLOOR + +/* Define to 1 if you have the `getopt' function. */ +#undef HAVE_GETOPT + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#undef HAVE_IEEEFP + +/* Define to 1 if the system has the type `int16'. */ +#undef HAVE_INT16 + +/* Define to 1 if the system has the type `int32'. */ +#undef HAVE_INT32 + +/* Define to 1 if the system has the type `int8'. */ +#undef HAVE_INT8 + +/* Define to 1 if you have the <inttypes.h> header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have the <io.h> header file. */ +#undef HAVE_IO_H + +/* Define to 1 if you have the `isascii' function. */ +#undef HAVE_ISASCII + +/* Define to 1 if you have the `jbg_newlen' function. */ +#undef HAVE_JBG_NEWLEN + +/* Define to 1 if you have the `lfind' function. */ +#undef HAVE_LFIND + +/* Define to 1 if you have the `c' library (-lc). */ +#undef HAVE_LIBC + +/* Define to 1 if you have the `m' library (-lm). */ +#undef HAVE_LIBM + +/* Define to 1 if you have the <limits.h> header file. */ +#undef HAVE_LIMITS_H + +/* Define to 1 if you have the <malloc.h> header file. */ +#undef HAVE_MALLOC_H + +/* Define to 1 if you have the `memmove' function. */ +#undef HAVE_MEMMOVE + +/* Define to 1 if you have the <memory.h> header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `memset' function. */ +#undef HAVE_MEMSET + +/* Define to 1 if you have the `mmap' function. */ +#undef HAVE_MMAP + +/* Define to 1 if you have the `pow' function. */ +#undef HAVE_POW + +/* Define if you have POSIX threads libraries and header files. */ +#undef HAVE_PTHREAD + +/* Define to 1 if you have the <search.h> header file. */ +#undef HAVE_SEARCH_H + +/* Define to 1 if you have the `setmode' function. */ +#undef HAVE_SETMODE + +/* Define to 1 if you have the `sqrt' function. */ +#undef HAVE_SQRT + +/* Define to 1 if you have the <stdint.h> header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the <stdlib.h> header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the `strcasecmp' function. */ +#undef HAVE_STRCASECMP + +/* Define to 1 if you have the `strchr' function. */ +#undef HAVE_STRCHR + +/* Define to 1 if you have the <strings.h> header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the <string.h> header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the `strrchr' function. */ +#undef HAVE_STRRCHR + +/* Define to 1 if you have the `strstr' function. */ +#undef HAVE_STRSTR + +/* Define to 1 if you have the `strtol' function. */ +#undef HAVE_STRTOL + +/* Define to 1 if you have the `strtoul' function. */ +#undef HAVE_STRTOUL + +/* Define to 1 if you have the <sys/stat.h> header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the <sys/time.h> header file. */ +#undef HAVE_SYS_TIME_H + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the <unistd.h> header file. */ +#undef HAVE_UNISTD_H + +/* Define to 1 if you have the <windows.h> header file. */ +#undef HAVE_WINDOWS_H + +/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian + (Intel) */ +#undef HOST_BIGENDIAN + +/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ +#undef HOST_FILLORDER + +/* Support ISO JBIG compression (requires JBIG-KIT library) */ +#undef JBIG_SUPPORT + +/* Support JPEG compression (requires IJG JPEG library) */ +#undef JPEG_SUPPORT + +/* Support LogLuv high dynamic range encoding */ +#undef LOGLUV_SUPPORT + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#undef LT_OBJDIR + +/* Support LZW algorithm */ +#undef LZW_SUPPORT + +/* Support Microsoft Document Imaging format */ +#undef MDI_SUPPORT + +/* Support NeXT 2-bit RLE algorithm */ +#undef NEXT_SUPPORT + +/* Define to 1 if your C compiler doesn't accept -c and -o together. */ +#undef NO_MINUS_C_MINUS_O + +/* Support Old JPEG compresson (read-only) */ +#undef OJPEG_SUPPORT + +/* Name of package */ +#undef PACKAGE + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Support Macintosh PackBits algorithm */ +#undef PACKBITS_SUPPORT + +/* Support Pixar log-format algorithm (requires Zlib) */ +#undef PIXARLOG_SUPPORT + +/* Define to necessary symbol if this constant uses a non-standard name on + your system. */ +#undef PTHREAD_CREATE_JOINABLE + +/* The size of `int', as computed by sizeof. */ +#undef SIZEOF_INT + +/* The size of `long', as computed by sizeof. */ +#undef SIZEOF_LONG + +/* The size of `signed long', as computed by sizeof. */ +#undef SIZEOF_SIGNED_LONG + +/* The size of `signed long long', as computed by sizeof. */ +#undef SIZEOF_SIGNED_LONG_LONG + +/* The size of `unsigned long', as computed by sizeof. */ +#undef SIZEOF_UNSIGNED_LONG + +/* The size of `unsigned long long', as computed by sizeof. */ +#undef SIZEOF_UNSIGNED_LONG_LONG + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Support strip chopping (whether or not to convert single-strip uncompressed + images to mutiple strips of specified size to reduce memory usage) */ +#undef STRIPCHOP_DEFAULT + +/* Default size of the strip in bytes (when strip chopping enabled) */ +#undef STRIP_SIZE_DEFAULT + +/* Enable SubIFD tag (330) support */ +#undef SUBIFD_SUPPORT + +/* Support ThunderScan 4-bit RLE algorithm */ +#undef THUNDER_SUPPORT + +/* Signed 64-bit type formatter */ +#undef TIFF_INT64_FORMAT + +/* Signed 64-bit type */ +#undef TIFF_INT64_T + +/* Unsigned 64-bit type formatter */ +#undef TIFF_UINT64_FORMAT + +/* Unsigned 64-bit type */ +#undef TIFF_UINT64_T + +/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */ +#undef TIME_WITH_SYS_TIME + +/* Define to 1 if your <sys/time.h> declares `struct tm'. */ +#undef TM_IN_SYS_TIME + +/* Version number of package */ +#undef VERSION + +/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most + significant byte first (like Motorola and SPARC, unlike Intel). */ +#if defined AC_APPLE_UNIVERSAL_BUILD +# if defined __BIG_ENDIAN__ +# define WORDS_BIGENDIAN 1 +# endif +#else +# ifndef WORDS_BIGENDIAN +# undef WORDS_BIGENDIAN +# endif +#endif + +/* Define to 1 if the X Window System is missing or not being used. */ +#undef X_DISPLAY_MISSING + +/* Support Deflate compression */ +#undef ZIP_SUPPORT + +/* Number of bits in a file offset, on hosts where this is settable. */ +#undef _FILE_OFFSET_BITS + +/* Define for large files, on AIX-style hosts. */ +#undef _LARGE_FILES + +/* Define to empty if `const' does not conform to ANSI C. */ +#undef const + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +#ifndef __cplusplus +#undef inline +#endif + +/* Define to `long int' if <sys/types.h> does not define. */ +#undef off_t + +/* Define to `unsigned int' if <sys/types.h> does not define. */ +#undef size_t diff --git a/tiff/libtiff/tif_config.vc.h b/tiff/libtiff/tif_config.vc.h new file mode 100644 index 0000000..4dd77dd --- /dev/null +++ b/tiff/libtiff/tif_config.vc.h @@ -0,0 +1,63 @@ +/* Define to 1 if you have the <assert.h> header file. */ +#define HAVE_ASSERT_H 1 + +/* Define to 1 if you have the <fcntl.h> header file. */ +#define HAVE_FCNTL_H 1 + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#define HAVE_IEEEFP 1 + +/* Define to 1 if you have the `jbg_newlen' function. */ +#define HAVE_JBG_NEWLEN 1 + +/* Define to 1 if you have the <string.h> header file. */ +#define HAVE_STRING_H 1 + +/* Define to 1 if you have the <sys/types.h> header file. */ +#define HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have the <io.h> header file. */ +#define HAVE_IO_H 1 + +/* Define to 1 if you have the <search.h> header file. */ +#define HAVE_SEARCH_H 1 + +/* Define to 1 if you have the `setmode' function. */ +#define HAVE_SETMODE 1 + +/* The size of a `int', as computed by sizeof. */ +#define SIZEOF_INT 4 + +/* The size of a `long', as computed by sizeof. */ +#define SIZEOF_LONG 4 + +/* Signed 64-bit type */ +#define TIFF_INT64_T signed __int64 + +/* Unsigned 64-bit type */ +#define TIFF_UINT64_T unsigned __int64 + +/* Set the native cpu bit order */ +#define HOST_FILLORDER FILLORDER_LSB2MSB + +/* Define to 1 if your processor stores words with the most significant byte + first (like Motorola and SPARC, unlike Intel and VAX). */ +/* #undef WORDS_BIGENDIAN */ + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +#ifndef __cplusplus +# ifndef inline +# define inline __inline +# endif +#endif + +#define lfind _lfind +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_config.wince.h b/tiff/libtiff/tif_config.wince.h new file mode 100644 index 0000000..857c651 --- /dev/null +++ b/tiff/libtiff/tif_config.wince.h @@ -0,0 +1,74 @@ +/* $Id: tif_config.wince.h,v 1.1.2.1 2010-06-08 18:50:41 bfriesen Exp $ */ + +/* + * TIFF library configuration header for Windows CE platform. + */ +#ifndef _WIN32_WCE +# error This version of tif_config.h header is dedicated for Windows CE platform! +#endif + +/* Define to 1 if you have the <assert.h> header file. */ +#define HAVE_ASSERT_H 1 + +/* Define to 1 if you have the <fcntl.h> header file. */ +#define HAVE_FCNTL_H 1 + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#define HAVE_IEEEFP 1 + +/* Define to 1 if you have the `jbg_newlen' function. */ +#define HAVE_JBG_NEWLEN 1 + +/* Define to 1 if you have the <string.h> header file. */ +#define HAVE_STRING_H 1 + +/* Define to 1 if you have the <sys/types.h> header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the <io.h> header file. */ +#define HAVE_IO_H 1 + +/* Define to 1 if you have the <search.h> header file. */ +#define HAVE_SEARCH_H 1 + +/* Define to 1 if you have the `setmode' function. */ +#define HAVE_SETMODE 1 + +/* Define to 1 if you have the `bsearch' function. */ +#define HAVE_BSEARCH 1 +#define bsearch wceex_bsearch + +/* Define to 1 if you have the `lfind' function. */ +#define HAVE_LFIND 1 +#define lfind wceex_lfind + +/* The size of a `int', as computed by sizeof. */ +#define SIZEOF_INT 4 + +/* The size of a `long', as computed by sizeof. */ +#define SIZEOF_LONG 4 + +/* Set the native cpu bit order */ +#define HOST_FILLORDER FILLORDER_LSB2MSB + +/* Define to 1 if your processor stores words with the most significant byte + first (like Motorola and SPARC, unlike Intel and VAX). */ +/* #undef WORDS_BIGENDIAN */ + +/* Define to `__inline__' or `__inline' if that's what the C compiler + calls it, or to nothing if 'inline' is not supported under any name. */ +#ifndef __cplusplus +# ifndef inline +# define inline __inline +# endif +#endif + + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_dir.c b/tiff/libtiff/tif_dir.c new file mode 100644 index 0000000..ac44b38 --- /dev/null +++ b/tiff/libtiff/tif_dir.c @@ -0,0 +1,1389 @@ +/* $Id: tif_dir.c,v 1.75.2.5 2010-06-09 21:15:27 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Directory Tag Get & Set Routines. + * (and also some miscellaneous stuff) + */ +#include "tiffiop.h" + +/* + * These are used in the backwards compatibility code... + */ +#define DATATYPE_VOID 0 /* !untyped data */ +#define DATATYPE_INT 1 /* !signed integer data */ +#define DATATYPE_UINT 2 /* !unsigned integer data */ +#define DATATYPE_IEEEFP 3 /* !IEEE floating point data */ + +static void +setByteArray(void** vpp, void* vp, size_t nmemb, size_t elem_size) +{ + if (*vpp) + _TIFFfree(*vpp), *vpp = 0; + if (vp) { + tsize_t bytes = nmemb * elem_size; + if (elem_size && bytes / elem_size == nmemb) + *vpp = (void*) _TIFFmalloc(bytes); + if (*vpp) + _TIFFmemcpy(*vpp, vp, bytes); + } +} +void _TIFFsetByteArray(void** vpp, void* vp, uint32 n) + { setByteArray(vpp, vp, n, 1); } +void _TIFFsetString(char** cpp, char* cp) + { setByteArray((void**) cpp, (void*) cp, strlen(cp)+1, 1); } +void _TIFFsetNString(char** cpp, char* cp, uint32 n) + { setByteArray((void**) cpp, (void*) cp, n, 1); } +void _TIFFsetShortArray(uint16** wpp, uint16* wp, uint32 n) + { setByteArray((void**) wpp, (void*) wp, n, sizeof (uint16)); } +void _TIFFsetLongArray(uint32** lpp, uint32* lp, uint32 n) + { setByteArray((void**) lpp, (void*) lp, n, sizeof (uint32)); } +void _TIFFsetFloatArray(float** fpp, float* fp, uint32 n) + { setByteArray((void**) fpp, (void*) fp, n, sizeof (float)); } +void _TIFFsetDoubleArray(double** dpp, double* dp, uint32 n) + { setByteArray((void**) dpp, (void*) dp, n, sizeof (double)); } + +/* + * Install extra samples information. + */ +static int +setExtraSamples(TIFFDirectory* td, va_list ap, uint32* v) +{ +/* XXX: Unassociated alpha data == 999 is a known Corel Draw bug, see below */ +#define EXTRASAMPLE_COREL_UNASSALPHA 999 + + uint16* va; + uint32 i; + + *v = va_arg(ap, uint32); + if ((uint16) *v > td->td_samplesperpixel) + return 0; + va = va_arg(ap, uint16*); + if (*v > 0 && va == NULL) /* typically missing param */ + return 0; + for (i = 0; i < *v; i++) { + if (va[i] > EXTRASAMPLE_UNASSALPHA) { + /* + * XXX: Corel Draw is known to produce incorrect + * ExtraSamples tags which must be patched here if we + * want to be able to open some of the damaged TIFF + * files: + */ + if (va[i] == EXTRASAMPLE_COREL_UNASSALPHA) + va[i] = EXTRASAMPLE_UNASSALPHA; + else + return 0; + } + } + td->td_extrasamples = (uint16) *v; + _TIFFsetShortArray(&td->td_sampleinfo, va, td->td_extrasamples); + return 1; + +#undef EXTRASAMPLE_COREL_UNASSALPHA +} + +static uint32 +checkInkNamesString(TIFF* tif, uint32 slen, const char* s) +{ + TIFFDirectory* td = &tif->tif_dir; + uint16 i = td->td_samplesperpixel; + + if (slen > 0) { + const char* ep = s+slen; + const char* cp = s; + for (; i > 0; i--) { + for (; *cp != '\0'; cp++) + if (cp >= ep) + goto bad; + cp++; /* skip \0 */ + } + return (cp-s); + } +bad: + TIFFErrorExt(tif->tif_clientdata, "TIFFSetField", + "%s: Invalid InkNames value; expecting %d names, found %d", + tif->tif_name, + td->td_samplesperpixel, + td->td_samplesperpixel-i); + return (0); +} + +static int +_TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + static const char module[] = "_TIFFVSetField"; + + TIFFDirectory* td = &tif->tif_dir; + int status = 1; + uint32 v32, i, v; + char* s; + + switch (tag) { + case TIFFTAG_SUBFILETYPE: + td->td_subfiletype = va_arg(ap, uint32); + break; + case TIFFTAG_IMAGEWIDTH: + td->td_imagewidth = va_arg(ap, uint32); + break; + case TIFFTAG_IMAGELENGTH: + td->td_imagelength = va_arg(ap, uint32); + break; + case TIFFTAG_BITSPERSAMPLE: + td->td_bitspersample = (uint16) va_arg(ap, int); + /* + * If the data require post-decoding processing to byte-swap + * samples, set it up here. Note that since tags are required + * to be ordered, compression code can override this behaviour + * in the setup method if it wants to roll the post decoding + * work in with its normal work. + */ + if (tif->tif_flags & TIFF_SWAB) { + if (td->td_bitspersample == 16) + tif->tif_postdecode = _TIFFSwab16BitData; + else if (td->td_bitspersample == 24) + tif->tif_postdecode = _TIFFSwab24BitData; + else if (td->td_bitspersample == 32) + tif->tif_postdecode = _TIFFSwab32BitData; + else if (td->td_bitspersample == 64) + tif->tif_postdecode = _TIFFSwab64BitData; + else if (td->td_bitspersample == 128) /* two 64's */ + tif->tif_postdecode = _TIFFSwab64BitData; + } + break; + case TIFFTAG_COMPRESSION: + v = va_arg(ap, uint32) & 0xffff; + /* + * If we're changing the compression scheme, the notify the + * previous module so that it can cleanup any state it's + * setup. + */ + if (TIFFFieldSet(tif, FIELD_COMPRESSION)) { + if (td->td_compression == v) + break; + (*tif->tif_cleanup)(tif); + tif->tif_flags &= ~TIFF_CODERSETUP; + } + /* + * Setup new compression routine state. + */ + if( (status = TIFFSetCompressionScheme(tif, v)) != 0 ) + td->td_compression = (uint16) v; + else + status = 0; + break; + case TIFFTAG_PHOTOMETRIC: + td->td_photometric = (uint16) va_arg(ap, int); + break; + case TIFFTAG_THRESHHOLDING: + td->td_threshholding = (uint16) va_arg(ap, int); + break; + case TIFFTAG_FILLORDER: + v = va_arg(ap, uint32); + if (v != FILLORDER_LSB2MSB && v != FILLORDER_MSB2LSB) + goto badvalue; + td->td_fillorder = (uint16) v; + break; + case TIFFTAG_ORIENTATION: + v = va_arg(ap, uint32); + if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v) + goto badvalue; + else + td->td_orientation = (uint16) v; + break; + case TIFFTAG_SAMPLESPERPIXEL: + /* XXX should cross check -- e.g. if pallette, then 1 */ + v = va_arg(ap, uint32); + if (v == 0) + goto badvalue; + td->td_samplesperpixel = (uint16) v; + break; + case TIFFTAG_ROWSPERSTRIP: + v32 = va_arg(ap, uint32); + if (v32 == 0) + goto badvalue32; + td->td_rowsperstrip = v32; + if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { + td->td_tilelength = v32; + td->td_tilewidth = td->td_imagewidth; + } + break; + case TIFFTAG_MINSAMPLEVALUE: + td->td_minsamplevalue = (uint16) va_arg(ap, int); + break; + case TIFFTAG_MAXSAMPLEVALUE: + td->td_maxsamplevalue = (uint16) va_arg(ap, int); + break; + case TIFFTAG_SMINSAMPLEVALUE: + td->td_sminsamplevalue = va_arg(ap, double); + break; + case TIFFTAG_SMAXSAMPLEVALUE: + td->td_smaxsamplevalue = va_arg(ap, double); + break; + case TIFFTAG_XRESOLUTION: + td->td_xresolution = (float) va_arg(ap, double); + break; + case TIFFTAG_YRESOLUTION: + td->td_yresolution = (float) va_arg(ap, double); + break; + case TIFFTAG_PLANARCONFIG: + v = va_arg(ap, uint32); + if (v != PLANARCONFIG_CONTIG && v != PLANARCONFIG_SEPARATE) + goto badvalue; + td->td_planarconfig = (uint16) v; + break; + case TIFFTAG_XPOSITION: + td->td_xposition = (float) va_arg(ap, double); + break; + case TIFFTAG_YPOSITION: + td->td_yposition = (float) va_arg(ap, double); + break; + case TIFFTAG_RESOLUTIONUNIT: + v = va_arg(ap, uint32); + if (v < RESUNIT_NONE || RESUNIT_CENTIMETER < v) + goto badvalue; + td->td_resolutionunit = (uint16) v; + break; + case TIFFTAG_PAGENUMBER: + td->td_pagenumber[0] = (uint16) va_arg(ap, int); + td->td_pagenumber[1] = (uint16) va_arg(ap, int); + break; + case TIFFTAG_HALFTONEHINTS: + td->td_halftonehints[0] = (uint16) va_arg(ap, int); + td->td_halftonehints[1] = (uint16) va_arg(ap, int); + break; + case TIFFTAG_COLORMAP: + v32 = (uint32)(1L<<td->td_bitspersample); + _TIFFsetShortArray(&td->td_colormap[0], va_arg(ap, uint16*), v32); + _TIFFsetShortArray(&td->td_colormap[1], va_arg(ap, uint16*), v32); + _TIFFsetShortArray(&td->td_colormap[2], va_arg(ap, uint16*), v32); + break; + case TIFFTAG_EXTRASAMPLES: + if (!setExtraSamples(td, ap, &v)) + goto badvalue; + break; + case TIFFTAG_MATTEING: + td->td_extrasamples = (uint16) (va_arg(ap, int) != 0); + if (td->td_extrasamples) { + uint16 sv = EXTRASAMPLE_ASSOCALPHA; + _TIFFsetShortArray(&td->td_sampleinfo, &sv, 1); + } + break; + case TIFFTAG_TILEWIDTH: + v32 = va_arg(ap, uint32); + if (v32 % 16) { + if (tif->tif_mode != O_RDONLY) + goto badvalue32; + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "Nonstandard tile width %d, convert file", v32); + } + td->td_tilewidth = v32; + tif->tif_flags |= TIFF_ISTILED; + break; + case TIFFTAG_TILELENGTH: + v32 = va_arg(ap, uint32); + if (v32 % 16) { + if (tif->tif_mode != O_RDONLY) + goto badvalue32; + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "Nonstandard tile length %d, convert file", v32); + } + td->td_tilelength = v32; + tif->tif_flags |= TIFF_ISTILED; + break; + case TIFFTAG_TILEDEPTH: + v32 = va_arg(ap, uint32); + if (v32 == 0) + goto badvalue32; + td->td_tiledepth = v32; + break; + case TIFFTAG_DATATYPE: + v = va_arg(ap, uint32); + switch (v) { + case DATATYPE_VOID: v = SAMPLEFORMAT_VOID; break; + case DATATYPE_INT: v = SAMPLEFORMAT_INT; break; + case DATATYPE_UINT: v = SAMPLEFORMAT_UINT; break; + case DATATYPE_IEEEFP: v = SAMPLEFORMAT_IEEEFP;break; + default: goto badvalue; + } + td->td_sampleformat = (uint16) v; + break; + case TIFFTAG_SAMPLEFORMAT: + v = va_arg(ap, uint32); + if (v < SAMPLEFORMAT_UINT || SAMPLEFORMAT_COMPLEXIEEEFP < v) + goto badvalue; + td->td_sampleformat = (uint16) v; + + /* Try to fix up the SWAB function for complex data. */ + if( td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT + && td->td_bitspersample == 32 + && tif->tif_postdecode == _TIFFSwab32BitData ) + tif->tif_postdecode = _TIFFSwab16BitData; + else if( (td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT + || td->td_sampleformat == SAMPLEFORMAT_COMPLEXIEEEFP) + && td->td_bitspersample == 64 + && tif->tif_postdecode == _TIFFSwab64BitData ) + tif->tif_postdecode = _TIFFSwab32BitData; + break; + case TIFFTAG_IMAGEDEPTH: + td->td_imagedepth = va_arg(ap, uint32); + break; + case TIFFTAG_SUBIFD: + if ((tif->tif_flags & TIFF_INSUBIFD) == 0) { + td->td_nsubifd = (uint16) va_arg(ap, int); + _TIFFsetLongArray(&td->td_subifd, va_arg(ap, uint32*), + (long) td->td_nsubifd); + } else { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Sorry, cannot nest SubIFDs", + tif->tif_name); + status = 0; + } + break; + case TIFFTAG_YCBCRPOSITIONING: + td->td_ycbcrpositioning = (uint16) va_arg(ap, int); + break; + case TIFFTAG_YCBCRSUBSAMPLING: + td->td_ycbcrsubsampling[0] = (uint16) va_arg(ap, int); + td->td_ycbcrsubsampling[1] = (uint16) va_arg(ap, int); + break; + case TIFFTAG_TRANSFERFUNCTION: + v = (td->td_samplesperpixel - td->td_extrasamples) > 1 ? 3 : 1; + for (i = 0; i < v; i++) + _TIFFsetShortArray(&td->td_transferfunction[i], + va_arg(ap, uint16*), 1L<<td->td_bitspersample); + break; + case TIFFTAG_REFERENCEBLACKWHITE: + /* XXX should check for null range */ + _TIFFsetFloatArray(&td->td_refblackwhite, va_arg(ap, float*), 6); + break; + case TIFFTAG_INKNAMES: + v = va_arg(ap, uint32); + s = va_arg(ap, char*); + v = checkInkNamesString(tif, v, s); + status = v > 0; + if( v > 0 ) { + _TIFFsetNString(&td->td_inknames, s, v); + td->td_inknameslen = v; + } + break; + default: { + TIFFTagValue *tv; + int tv_size, iCustom; + const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); + + /* + * This can happen if multiple images are open with different + * codecs which have private tags. The global tag information + * table may then have tags that are valid for one file but not + * the other. If the client tries to set a tag that is not valid + * for the image's codec then we'll arrive here. This + * happens, for example, when tiffcp is used to convert between + * compression schemes and codec-specific tags are blindly copied. + */ + if(fip == NULL || fip->field_bit != FIELD_CUSTOM) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Invalid %stag \"%s\" (not supported by codec)", + tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", + fip ? fip->field_name : "Unknown"); + status = 0; + break; + } + + /* + * Find the existing entry for this custom value. + */ + tv = NULL; + for (iCustom = 0; iCustom < td->td_customValueCount; iCustom++) { + if (td->td_customValues[iCustom].info->field_tag == tag) { + tv = td->td_customValues + iCustom; + if (tv->value != NULL) { + _TIFFfree(tv->value); + tv->value = NULL; + } + break; + } + } + + /* + * Grow the custom list if the entry was not found. + */ + if(tv == NULL) { + TIFFTagValue *new_customValues; + + td->td_customValueCount++; + new_customValues = (TIFFTagValue *) + _TIFFrealloc(td->td_customValues, + sizeof(TIFFTagValue) * td->td_customValueCount); + if (!new_customValues) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Failed to allocate space for list of custom values", + tif->tif_name); + status = 0; + goto end; + } + + td->td_customValues = new_customValues; + + tv = td->td_customValues + (td->td_customValueCount - 1); + tv->info = fip; + tv->value = NULL; + tv->count = 0; + } + + /* + * Set custom value ... save a copy of the custom tag value. + */ + tv_size = _TIFFDataSize(fip->field_type); + if (tv_size == 0) { + status = 0; + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Bad field type %d for \"%s\"", + tif->tif_name, fip->field_type, + fip->field_name); + goto end; + } + + if(fip->field_passcount) { + if (fip->field_writecount == TIFF_VARIABLE2) + tv->count = (uint32) va_arg(ap, uint32); + else + tv->count = (int) va_arg(ap, int); + } else if (fip->field_writecount == TIFF_VARIABLE + || fip->field_writecount == TIFF_VARIABLE2) + tv->count = 1; + else if (fip->field_writecount == TIFF_SPP) + tv->count = td->td_samplesperpixel; + else + tv->count = fip->field_writecount; + + + if (fip->field_type == TIFF_ASCII) + _TIFFsetString((char **)&tv->value, va_arg(ap, char *)); + else { + tv->value = _TIFFCheckMalloc(tif, tv_size, tv->count, + "Tag Value"); + if (!tv->value) { + status = 0; + goto end; + } + + if ((fip->field_passcount + || fip->field_writecount == TIFF_VARIABLE + || fip->field_writecount == TIFF_VARIABLE2 + || fip->field_writecount == TIFF_SPP + || tv->count > 1) + && fip->field_tag != TIFFTAG_PAGENUMBER + && fip->field_tag != TIFFTAG_HALFTONEHINTS + && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING + && fip->field_tag != TIFFTAG_DOTRANGE) { + _TIFFmemcpy(tv->value, va_arg(ap, void *), + tv->count * tv_size); + } else { + /* + * XXX: The following loop required to handle + * TIFFTAG_PAGENUMBER, TIFFTAG_HALFTONEHINTS, + * TIFFTAG_YCBCRSUBSAMPLING and TIFFTAG_DOTRANGE tags. + * These tags are actually arrays and should be passed as + * array pointers to TIFFSetField() function, but actually + * passed as a list of separate values. This behaviour + * must be changed in the future! + */ + int i; + char *val = (char *)tv->value; + + for (i = 0; i < tv->count; i++, val += tv_size) { + switch (fip->field_type) { + case TIFF_BYTE: + case TIFF_UNDEFINED: + { + uint8 v = (uint8)va_arg(ap, int); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_SBYTE: + { + int8 v = (int8)va_arg(ap, int); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_SHORT: + { + uint16 v = (uint16)va_arg(ap, int); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_SSHORT: + { + int16 v = (int16)va_arg(ap, int); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_LONG: + case TIFF_IFD: + { + uint32 v = va_arg(ap, uint32); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_SLONG: + { + int32 v = va_arg(ap, int32); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + case TIFF_FLOAT: + { + float v = (float)va_arg(ap, double); + _TIFFmemcpy(val, &v, tv_size); + } + break; + case TIFF_DOUBLE: + { + double v = va_arg(ap, double); + _TIFFmemcpy(val, &v, tv_size); + } + break; + default: + _TIFFmemset(val, 0, tv_size); + status = 0; + break; + } + } + } + } + } + } + if (status) { + TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); + tif->tif_flags |= TIFF_DIRTYDIRECT; + } + +end: + va_end(ap); + return (status); +badvalue: + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Bad value %d for \"%s\" tag", + tif->tif_name, v, + _TIFFFieldWithTag(tif, tag)->field_name); + va_end(ap); + return (0); +badvalue32: + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Bad value %u for \"%s\" tag", + tif->tif_name, v32, + _TIFFFieldWithTag(tif, tag)->field_name); + va_end(ap); + return (0); +} + +/* + * Return 1/0 according to whether or not + * it is permissible to set the tag's value. + * Note that we allow ImageLength to be changed + * so that we can append and extend to images. + * Any other tag may not be altered once writing + * has commenced, unless its value has no effect + * on the format of the data that is written. + */ +static int +OkToChangeTag(TIFF* tif, ttag_t tag) +{ + const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); + if (!fip) { /* unknown tag */ + TIFFErrorExt(tif->tif_clientdata, "TIFFSetField", "%s: Unknown %stag %u", + tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", tag); + return (0); + } + if (tag != TIFFTAG_IMAGELENGTH && (tif->tif_flags & TIFF_BEENWRITING) && + !fip->field_oktochange) { + /* + * Consult info table to see if tag can be changed + * after we've started writing. We only allow changes + * to those tags that don't/shouldn't affect the + * compression and/or format of the data. + */ + TIFFErrorExt(tif->tif_clientdata, "TIFFSetField", + "%s: Cannot modify tag \"%s\" while writing", + tif->tif_name, fip->field_name); + return (0); + } + return (1); +} + +/* + * Record the value of a field in the + * internal directory structure. The + * field will be written to the file + * when/if the directory structure is + * updated. + */ +int +TIFFSetField(TIFF* tif, ttag_t tag, ...) +{ + va_list ap; + int status; + + va_start(ap, tag); + status = TIFFVSetField(tif, tag, ap); + va_end(ap); + return (status); +} + +/* + * Like TIFFSetField, but taking a varargs + * parameter list. This routine is useful + * for building higher-level interfaces on + * top of the library. + */ +int +TIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + return OkToChangeTag(tif, tag) ? + (*tif->tif_tagmethods.vsetfield)(tif, tag, ap) : 0; +} + +static int +_TIFFVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + TIFFDirectory* td = &tif->tif_dir; + int ret_val = 1; + + switch (tag) { + case TIFFTAG_SUBFILETYPE: + *va_arg(ap, uint32*) = td->td_subfiletype; + break; + case TIFFTAG_IMAGEWIDTH: + *va_arg(ap, uint32*) = td->td_imagewidth; + break; + case TIFFTAG_IMAGELENGTH: + *va_arg(ap, uint32*) = td->td_imagelength; + break; + case TIFFTAG_BITSPERSAMPLE: + *va_arg(ap, uint16*) = td->td_bitspersample; + break; + case TIFFTAG_COMPRESSION: + *va_arg(ap, uint16*) = td->td_compression; + break; + case TIFFTAG_PHOTOMETRIC: + *va_arg(ap, uint16*) = td->td_photometric; + break; + case TIFFTAG_THRESHHOLDING: + *va_arg(ap, uint16*) = td->td_threshholding; + break; + case TIFFTAG_FILLORDER: + *va_arg(ap, uint16*) = td->td_fillorder; + break; + case TIFFTAG_ORIENTATION: + *va_arg(ap, uint16*) = td->td_orientation; + break; + case TIFFTAG_SAMPLESPERPIXEL: + *va_arg(ap, uint16*) = td->td_samplesperpixel; + break; + case TIFFTAG_ROWSPERSTRIP: + *va_arg(ap, uint32*) = td->td_rowsperstrip; + break; + case TIFFTAG_MINSAMPLEVALUE: + *va_arg(ap, uint16*) = td->td_minsamplevalue; + break; + case TIFFTAG_MAXSAMPLEVALUE: + *va_arg(ap, uint16*) = td->td_maxsamplevalue; + break; + case TIFFTAG_SMINSAMPLEVALUE: + *va_arg(ap, double*) = td->td_sminsamplevalue; + break; + case TIFFTAG_SMAXSAMPLEVALUE: + *va_arg(ap, double*) = td->td_smaxsamplevalue; + break; + case TIFFTAG_XRESOLUTION: + *va_arg(ap, float*) = td->td_xresolution; + break; + case TIFFTAG_YRESOLUTION: + *va_arg(ap, float*) = td->td_yresolution; + break; + case TIFFTAG_PLANARCONFIG: + *va_arg(ap, uint16*) = td->td_planarconfig; + break; + case TIFFTAG_XPOSITION: + *va_arg(ap, float*) = td->td_xposition; + break; + case TIFFTAG_YPOSITION: + *va_arg(ap, float*) = td->td_yposition; + break; + case TIFFTAG_RESOLUTIONUNIT: + *va_arg(ap, uint16*) = td->td_resolutionunit; + break; + case TIFFTAG_PAGENUMBER: + *va_arg(ap, uint16*) = td->td_pagenumber[0]; + *va_arg(ap, uint16*) = td->td_pagenumber[1]; + break; + case TIFFTAG_HALFTONEHINTS: + *va_arg(ap, uint16*) = td->td_halftonehints[0]; + *va_arg(ap, uint16*) = td->td_halftonehints[1]; + break; + case TIFFTAG_COLORMAP: + *va_arg(ap, uint16**) = td->td_colormap[0]; + *va_arg(ap, uint16**) = td->td_colormap[1]; + *va_arg(ap, uint16**) = td->td_colormap[2]; + break; + case TIFFTAG_STRIPOFFSETS: + case TIFFTAG_TILEOFFSETS: + *va_arg(ap, uint32**) = td->td_stripoffset; + break; + case TIFFTAG_STRIPBYTECOUNTS: + case TIFFTAG_TILEBYTECOUNTS: + *va_arg(ap, uint32**) = td->td_stripbytecount; + break; + case TIFFTAG_MATTEING: + *va_arg(ap, uint16*) = + (td->td_extrasamples == 1 && + td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); + break; + case TIFFTAG_EXTRASAMPLES: + *va_arg(ap, uint16*) = td->td_extrasamples; + *va_arg(ap, uint16**) = td->td_sampleinfo; + break; + case TIFFTAG_TILEWIDTH: + *va_arg(ap, uint32*) = td->td_tilewidth; + break; + case TIFFTAG_TILELENGTH: + *va_arg(ap, uint32*) = td->td_tilelength; + break; + case TIFFTAG_TILEDEPTH: + *va_arg(ap, uint32*) = td->td_tiledepth; + break; + case TIFFTAG_DATATYPE: + switch (td->td_sampleformat) { + case SAMPLEFORMAT_UINT: + *va_arg(ap, uint16*) = DATATYPE_UINT; + break; + case SAMPLEFORMAT_INT: + *va_arg(ap, uint16*) = DATATYPE_INT; + break; + case SAMPLEFORMAT_IEEEFP: + *va_arg(ap, uint16*) = DATATYPE_IEEEFP; + break; + case SAMPLEFORMAT_VOID: + *va_arg(ap, uint16*) = DATATYPE_VOID; + break; + } + break; + case TIFFTAG_SAMPLEFORMAT: + *va_arg(ap, uint16*) = td->td_sampleformat; + break; + case TIFFTAG_IMAGEDEPTH: + *va_arg(ap, uint32*) = td->td_imagedepth; + break; + case TIFFTAG_SUBIFD: + *va_arg(ap, uint16*) = td->td_nsubifd; + *va_arg(ap, uint32**) = td->td_subifd; + break; + case TIFFTAG_YCBCRPOSITIONING: + *va_arg(ap, uint16*) = td->td_ycbcrpositioning; + break; + case TIFFTAG_YCBCRSUBSAMPLING: + *va_arg(ap, uint16*) = td->td_ycbcrsubsampling[0]; + *va_arg(ap, uint16*) = td->td_ycbcrsubsampling[1]; + break; + case TIFFTAG_TRANSFERFUNCTION: + *va_arg(ap, uint16**) = td->td_transferfunction[0]; + if (td->td_samplesperpixel - td->td_extrasamples > 1) { + *va_arg(ap, uint16**) = td->td_transferfunction[1]; + *va_arg(ap, uint16**) = td->td_transferfunction[2]; + } + break; + case TIFFTAG_REFERENCEBLACKWHITE: + *va_arg(ap, float**) = td->td_refblackwhite; + break; + case TIFFTAG_INKNAMES: + *va_arg(ap, char**) = td->td_inknames; + break; + default: + { + const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); + int i; + + /* + * This can happen if multiple images are open with different + * codecs which have private tags. The global tag information + * table may then have tags that are valid for one file but not + * the other. If the client tries to get a tag that is not valid + * for the image's codec then we'll arrive here. + */ + if( fip == NULL || fip->field_bit != FIELD_CUSTOM ) + { + TIFFErrorExt(tif->tif_clientdata, "_TIFFVGetField", + "%s: Invalid %stag \"%s\" " + "(not supported by codec)", + tif->tif_name, + isPseudoTag(tag) ? "pseudo-" : "", + fip ? fip->field_name : "Unknown"); + ret_val = 0; + break; + } + + /* + * Do we have a custom value? + */ + ret_val = 0; + for (i = 0; i < td->td_customValueCount; i++) { + TIFFTagValue *tv = td->td_customValues + i; + + if (tv->info->field_tag != tag) + continue; + + if (fip->field_passcount) { + if (fip->field_readcount == TIFF_VARIABLE2) + *va_arg(ap, uint32*) = (uint32)tv->count; + else /* Assume TIFF_VARIABLE */ + *va_arg(ap, uint16*) = (uint16)tv->count; + *va_arg(ap, void **) = tv->value; + ret_val = 1; + } else { + if ((fip->field_type == TIFF_ASCII + || fip->field_readcount == TIFF_VARIABLE + || fip->field_readcount == TIFF_VARIABLE2 + || fip->field_readcount == TIFF_SPP + || tv->count > 1) + && fip->field_tag != TIFFTAG_PAGENUMBER + && fip->field_tag != TIFFTAG_HALFTONEHINTS + && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING + && fip->field_tag != TIFFTAG_DOTRANGE) { + *va_arg(ap, void **) = tv->value; + ret_val = 1; + } else { + int j; + char *val = (char *)tv->value; + + for (j = 0; j < tv->count; + j++, val += _TIFFDataSize(tv->info->field_type)) { + switch (fip->field_type) { + case TIFF_BYTE: + case TIFF_UNDEFINED: + *va_arg(ap, uint8*) = + *(uint8 *)val; + ret_val = 1; + break; + case TIFF_SBYTE: + *va_arg(ap, int8*) = + *(int8 *)val; + ret_val = 1; + break; + case TIFF_SHORT: + *va_arg(ap, uint16*) = + *(uint16 *)val; + ret_val = 1; + break; + case TIFF_SSHORT: + *va_arg(ap, int16*) = + *(int16 *)val; + ret_val = 1; + break; + case TIFF_LONG: + case TIFF_IFD: + *va_arg(ap, uint32*) = + *(uint32 *)val; + ret_val = 1; + break; + case TIFF_SLONG: + *va_arg(ap, int32*) = + *(int32 *)val; + ret_val = 1; + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + case TIFF_FLOAT: + *va_arg(ap, float*) = + *(float *)val; + ret_val = 1; + break; + case TIFF_DOUBLE: + *va_arg(ap, double*) = + *(double *)val; + ret_val = 1; + break; + default: + ret_val = 0; + break; + } + } + } + } + break; + } + } + } + return(ret_val); +} + +/* + * Return the value of a field in the + * internal directory structure. + */ +int +TIFFGetField(TIFF* tif, ttag_t tag, ...) +{ + int status; + va_list ap; + + va_start(ap, tag); + status = TIFFVGetField(tif, tag, ap); + va_end(ap); + return (status); +} + +/* + * Like TIFFGetField, but taking a varargs + * parameter list. This routine is useful + * for building higher-level interfaces on + * top of the library. + */ +int +TIFFVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); + return (fip && (isPseudoTag(tag) || TIFFFieldSet(tif, fip->field_bit)) ? + (*tif->tif_tagmethods.vgetfield)(tif, tag, ap) : 0); +} + +#define CleanupField(member) { \ + if (td->member) { \ + _TIFFfree(td->member); \ + td->member = 0; \ + } \ +} + +/* + * Release storage associated with a directory. + */ +void +TIFFFreeDirectory(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + int i; + + _TIFFmemset(td->td_fieldsset, 0, FIELD_SETLONGS); + CleanupField(td_colormap[0]); + CleanupField(td_colormap[1]); + CleanupField(td_colormap[2]); + CleanupField(td_sampleinfo); + CleanupField(td_subifd); + CleanupField(td_inknames); + CleanupField(td_refblackwhite); + CleanupField(td_transferfunction[0]); + CleanupField(td_transferfunction[1]); + CleanupField(td_transferfunction[2]); + CleanupField(td_stripoffset); + CleanupField(td_stripbytecount); + TIFFClrFieldBit(tif, FIELD_YCBCRSUBSAMPLING); + TIFFClrFieldBit(tif, FIELD_YCBCRPOSITIONING); + + /* Cleanup custom tag values */ + for( i = 0; i < td->td_customValueCount; i++ ) { + if (td->td_customValues[i].value) + _TIFFfree(td->td_customValues[i].value); + } + + td->td_customValueCount = 0; + CleanupField(td_customValues); +} +#undef CleanupField + +/* + * Client Tag extension support (from Niles Ritter). + */ +static TIFFExtendProc _TIFFextender = (TIFFExtendProc) NULL; + +TIFFExtendProc +TIFFSetTagExtender(TIFFExtendProc extender) +{ + TIFFExtendProc prev = _TIFFextender; + _TIFFextender = extender; + return (prev); +} + +/* + * Setup for a new directory. Should we automatically call + * TIFFWriteDirectory() if the current one is dirty? + * + * The newly created directory will not exist on the file till + * TIFFWriteDirectory(), TIFFFlush() or TIFFClose() is called. + */ +int +TIFFCreateDirectory(TIFF* tif) +{ + TIFFDefaultDirectory(tif); + tif->tif_diroff = 0; + tif->tif_nextdiroff = 0; + tif->tif_curoff = 0; + tif->tif_row = (uint32) -1; + tif->tif_curstrip = (tstrip_t) -1; + + return 0; +} + +/* + * Setup a default directory structure. + */ +int +TIFFDefaultDirectory(TIFF* tif) +{ + register TIFFDirectory* td = &tif->tif_dir; + + size_t tiffFieldInfoCount; + const TIFFFieldInfo *tiffFieldInfo = + _TIFFGetFieldInfo(&tiffFieldInfoCount); + _TIFFSetupFieldInfo(tif, tiffFieldInfo, tiffFieldInfoCount); + + _TIFFmemset(td, 0, sizeof (*td)); + td->td_fillorder = FILLORDER_MSB2LSB; + td->td_bitspersample = 1; + td->td_threshholding = THRESHHOLD_BILEVEL; + td->td_orientation = ORIENTATION_TOPLEFT; + td->td_samplesperpixel = 1; + td->td_rowsperstrip = (uint32) -1; + td->td_tilewidth = 0; + td->td_tilelength = 0; + td->td_tiledepth = 1; + td->td_stripbytecountsorted = 1; /* Our own arrays always sorted. */ + td->td_resolutionunit = RESUNIT_INCH; + td->td_sampleformat = SAMPLEFORMAT_UINT; + td->td_imagedepth = 1; + td->td_ycbcrsubsampling[0] = 2; + td->td_ycbcrsubsampling[1] = 2; + td->td_ycbcrpositioning = YCBCRPOSITION_CENTERED; + tif->tif_postdecode = _TIFFNoPostDecode; + tif->tif_foundfield = NULL; + tif->tif_tagmethods.vsetfield = _TIFFVSetField; + tif->tif_tagmethods.vgetfield = _TIFFVGetField; + tif->tif_tagmethods.printdir = NULL; + /* + * Give client code a chance to install their own + * tag extensions & methods, prior to compression overloads. + */ + if (_TIFFextender) + (*_TIFFextender)(tif); + (void) TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); + /* + * NB: The directory is marked dirty as a result of setting + * up the default compression scheme. However, this really + * isn't correct -- we want TIFF_DIRTYDIRECT to be set only + * if the user does something. We could just do the setup + * by hand, but it seems better to use the normal mechanism + * (i.e. TIFFSetField). + */ + tif->tif_flags &= ~TIFF_DIRTYDIRECT; + + /* + * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=19 + * we clear the ISTILED flag when setting up a new directory. + * Should we also be clearing stuff like INSUBIFD? + */ + tif->tif_flags &= ~TIFF_ISTILED; + /* + * Clear other directory-specific fields. + */ + tif->tif_tilesize = -1; + tif->tif_scanlinesize = -1; + + return (1); +} + +static int +TIFFAdvanceDirectory(TIFF* tif, uint32* nextdir, toff_t* off) +{ + static const char module[] = "TIFFAdvanceDirectory"; + uint16 dircount; + if (isMapped(tif)) + { + toff_t poff=*nextdir; + if (poff+sizeof(uint16) > tif->tif_size) + { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory count", + tif->tif_name); + return (0); + } + _TIFFmemcpy(&dircount, tif->tif_base+poff, sizeof (uint16)); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + poff+=sizeof (uint16)+dircount*sizeof (TIFFDirEntry); + if (off != NULL) + *off = poff; + if (((toff_t) (poff+sizeof (uint32))) > tif->tif_size) + { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory link", + tif->tif_name); + return (0); + } + _TIFFmemcpy(nextdir, tif->tif_base+poff, sizeof (uint32)); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(nextdir); + return (1); + } + else + { + if (!SeekOK(tif, *nextdir) || + !ReadOK(tif, &dircount, sizeof (uint16))) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory count", + tif->tif_name); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + if (off != NULL) + *off = TIFFSeekFile(tif, + dircount*sizeof (TIFFDirEntry), SEEK_CUR); + else + (void) TIFFSeekFile(tif, + dircount*sizeof (TIFFDirEntry), SEEK_CUR); + if (!ReadOK(tif, nextdir, sizeof (uint32))) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory link", + tif->tif_name); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(nextdir); + return (1); + } +} + +/* + * Count the number of directories in a file. + */ +tdir_t +TIFFNumberOfDirectories(TIFF* tif) +{ + toff_t nextdir = tif->tif_header.tiff_diroff; + tdir_t n = 0; + + while (nextdir != 0 && TIFFAdvanceDirectory(tif, &nextdir, NULL)) + n++; + return (n); +} + +/* + * Set the n-th directory as the current directory. + * NB: Directories are numbered starting at 0. + */ +int +TIFFSetDirectory(TIFF* tif, tdir_t dirn) +{ + toff_t nextdir; + tdir_t n; + + nextdir = tif->tif_header.tiff_diroff; + for (n = dirn; n > 0 && nextdir != 0; n--) + if (!TIFFAdvanceDirectory(tif, &nextdir, NULL)) + return (0); + tif->tif_nextdiroff = nextdir; + /* + * Set curdir to the actual directory index. The + * -1 is because TIFFReadDirectory will increment + * tif_curdir after successfully reading the directory. + */ + tif->tif_curdir = (dirn - n) - 1; + /* + * Reset tif_dirnumber counter and start new list of seen directories. + * We need this to prevent IFD loops. + */ + tif->tif_dirnumber = 0; + return (TIFFReadDirectory(tif)); +} + +/* + * Set the current directory to be the directory + * located at the specified file offset. This interface + * is used mainly to access directories linked with + * the SubIFD tag (e.g. thumbnail images). + */ +int +TIFFSetSubDirectory(TIFF* tif, uint32 diroff) +{ + tif->tif_nextdiroff = diroff; + /* + * Reset tif_dirnumber counter and start new list of seen directories. + * We need this to prevent IFD loops. + */ + tif->tif_dirnumber = 0; + return (TIFFReadDirectory(tif)); +} + +/* + * Return file offset of the current directory. + */ +uint32 +TIFFCurrentDirOffset(TIFF* tif) +{ + return (tif->tif_diroff); +} + +/* + * Return an indication of whether or not we are + * at the last directory in the file. + */ +int +TIFFLastDirectory(TIFF* tif) +{ + return (tif->tif_nextdiroff == 0); +} + +/* + * Unlink the specified directory from the directory chain. + */ +int +TIFFUnlinkDirectory(TIFF* tif, tdir_t dirn) +{ + static const char module[] = "TIFFUnlinkDirectory"; + toff_t nextdir; + toff_t off; + tdir_t n; + + if (tif->tif_mode == O_RDONLY) { + TIFFErrorExt(tif->tif_clientdata, module, + "Can not unlink directory in read-only file"); + return (0); + } + /* + * Go to the directory before the one we want + * to unlink and nab the offset of the link + * field we'll need to patch. + */ + nextdir = tif->tif_header.tiff_diroff; + off = sizeof (uint16) + sizeof (uint16); + for (n = dirn-1; n > 0; n--) { + if (nextdir == 0) { + TIFFErrorExt(tif->tif_clientdata, module, "Directory %d does not exist", dirn); + return (0); + } + if (!TIFFAdvanceDirectory(tif, &nextdir, &off)) + return (0); + } + /* + * Advance to the directory to be unlinked and fetch + * the offset of the directory that follows. + */ + if (!TIFFAdvanceDirectory(tif, &nextdir, NULL)) + return (0); + /* + * Go back and patch the link field of the preceding + * directory to point to the offset of the directory + * that follows. + */ + (void) TIFFSeekFile(tif, off, SEEK_SET); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(&nextdir); + if (!WriteOK(tif, &nextdir, sizeof (uint32))) { + TIFFErrorExt(tif->tif_clientdata, module, "Error writing directory link"); + return (0); + } + /* + * Leave directory state setup safely. We don't have + * facilities for doing inserting and removing directories, + * so it's safest to just invalidate everything. This + * means that the caller can only append to the directory + * chain. + */ + (*tif->tif_cleanup)(tif); + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { + _TIFFfree(tif->tif_rawdata); + tif->tif_rawdata = NULL; + tif->tif_rawcc = 0; + } + tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP|TIFF_POSTENCODE); + TIFFFreeDirectory(tif); + TIFFDefaultDirectory(tif); + tif->tif_diroff = 0; /* force link on next write */ + tif->tif_nextdiroff = 0; /* next write must be at end */ + tif->tif_curoff = 0; + tif->tif_row = (uint32) -1; + tif->tif_curstrip = (tstrip_t) -1; + return (1); +} + +/* [BFC] + * + * Author: Bruce Cameron <cameron@petris.com> + * + * Set a table of tags that are to be replaced during directory process by the + * 'IGNORE' state - or return TRUE/FALSE for the requested tag such that + * 'ReadDirectory' can use the stored information. + * + * FIXME: this is never used properly. Should be removed in the future. + */ +int +TIFFReassignTagToIgnore (enum TIFFIgnoreSense task, int TIFFtagID) +{ + static int TIFFignoretags [FIELD_LAST]; + static int tagcount = 0 ; + int i; /* Loop index */ + int j; /* Loop index */ + + switch (task) + { + case TIS_STORE: + if ( tagcount < (FIELD_LAST - 1) ) + { + for ( j = 0 ; j < tagcount ; ++j ) + { /* Do not add duplicate tag */ + if ( TIFFignoretags [j] == TIFFtagID ) + return (TRUE) ; + } + TIFFignoretags [tagcount++] = TIFFtagID ; + return (TRUE) ; + } + break ; + + case TIS_EXTRACT: + for ( i = 0 ; i < tagcount ; ++i ) + { + if ( TIFFignoretags [i] == TIFFtagID ) + return (TRUE) ; + } + break; + + case TIS_EMPTY: + tagcount = 0 ; /* Clear the list */ + return (TRUE) ; + + default: + break; + } + + return (FALSE); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_dir.h b/tiff/libtiff/tif_dir.h new file mode 100644 index 0000000..515af19 --- /dev/null +++ b/tiff/libtiff/tif_dir.h @@ -0,0 +1,211 @@ +/* $Id: tif_dir.h,v 1.30.2.3 2010-06-09 21:15:27 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _TIFFDIR_ +#define _TIFFDIR_ +/* + * ``Library-private'' Directory-related Definitions. + */ + +/* + * Internal format of a TIFF directory entry. + */ +typedef struct { +#define FIELD_SETLONGS 4 + /* bit vector of fields that are set */ + unsigned long td_fieldsset[FIELD_SETLONGS]; + + uint32 td_imagewidth, td_imagelength, td_imagedepth; + uint32 td_tilewidth, td_tilelength, td_tiledepth; + uint32 td_subfiletype; + uint16 td_bitspersample; + uint16 td_sampleformat; + uint16 td_compression; + uint16 td_photometric; + uint16 td_threshholding; + uint16 td_fillorder; + uint16 td_orientation; + uint16 td_samplesperpixel; + uint32 td_rowsperstrip; + uint16 td_minsamplevalue, td_maxsamplevalue; + double td_sminsamplevalue, td_smaxsamplevalue; + float td_xresolution, td_yresolution; + uint16 td_resolutionunit; + uint16 td_planarconfig; + float td_xposition, td_yposition; + uint16 td_pagenumber[2]; + uint16* td_colormap[3]; + uint16 td_halftonehints[2]; + uint16 td_extrasamples; + uint16* td_sampleinfo; + /* even though the name is misleading, td_stripsperimage is the number + * of striles (=strips or tiles) per plane, and td_nstrips the total + * number of striles */ + tstrile_t td_stripsperimage; + tstrile_t td_nstrips; /* size of offset & bytecount arrays */ + toff_t* td_stripoffset; + toff_t* td_stripbytecount; /* FIXME: it should be tsize_t array */ + int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */ + uint16 td_nsubifd; + uint32* td_subifd; + /* YCbCr parameters */ + uint16 td_ycbcrsubsampling[2]; + uint16 td_ycbcrpositioning; + /* Colorimetry parameters */ + float* td_refblackwhite; + uint16* td_transferfunction[3]; + /* CMYK parameters */ + int td_inknameslen; + char* td_inknames; + + int td_customValueCount; + TIFFTagValue *td_customValues; +} TIFFDirectory; + +/* + * Field flags used to indicate fields that have + * been set in a directory, and to reference fields + * when manipulating a directory. + */ + +/* + * FIELD_IGNORE is used to signify tags that are to + * be processed but otherwise ignored. This permits + * antiquated tags to be quietly read and discarded. + * Note that a bit *is* allocated for ignored tags; + * this is understood by the directory reading logic + * which uses this fact to avoid special-case handling + */ +#define FIELD_IGNORE 0 + +/* multi-item fields */ +#define FIELD_IMAGEDIMENSIONS 1 +#define FIELD_TILEDIMENSIONS 2 +#define FIELD_RESOLUTION 3 +#define FIELD_POSITION 4 + +/* single-item fields */ +#define FIELD_SUBFILETYPE 5 +#define FIELD_BITSPERSAMPLE 6 +#define FIELD_COMPRESSION 7 +#define FIELD_PHOTOMETRIC 8 +#define FIELD_THRESHHOLDING 9 +#define FIELD_FILLORDER 10 +#define FIELD_ORIENTATION 15 +#define FIELD_SAMPLESPERPIXEL 16 +#define FIELD_ROWSPERSTRIP 17 +#define FIELD_MINSAMPLEVALUE 18 +#define FIELD_MAXSAMPLEVALUE 19 +#define FIELD_PLANARCONFIG 20 +#define FIELD_RESOLUTIONUNIT 22 +#define FIELD_PAGENUMBER 23 +#define FIELD_STRIPBYTECOUNTS 24 +#define FIELD_STRIPOFFSETS 25 +#define FIELD_COLORMAP 26 +#define FIELD_EXTRASAMPLES 31 +#define FIELD_SAMPLEFORMAT 32 +#define FIELD_SMINSAMPLEVALUE 33 +#define FIELD_SMAXSAMPLEVALUE 34 +#define FIELD_IMAGEDEPTH 35 +#define FIELD_TILEDEPTH 36 +#define FIELD_HALFTONEHINTS 37 +#define FIELD_YCBCRSUBSAMPLING 39 +#define FIELD_YCBCRPOSITIONING 40 +#define FIELD_REFBLACKWHITE 41 +#define FIELD_TRANSFERFUNCTION 44 +#define FIELD_INKNAMES 46 +#define FIELD_SUBIFD 49 +/* FIELD_CUSTOM (see tiffio.h) 65 */ +/* end of support for well-known tags; codec-private tags follow */ +#define FIELD_CODEC 66 /* base of codec-private tags */ + + +/* + * Pseudo-tags don't normally need field bits since they + * are not written to an output file (by definition). + * The library also has express logic to always query a + * codec for a pseudo-tag so allocating a field bit for + * one is a waste. If codec wants to promote the notion + * of a pseudo-tag being ``set'' or ``unset'' then it can + * do using internal state flags without polluting the + * field bit space defined for real tags. + */ +#define FIELD_PSEUDO 0 + +#define FIELD_LAST (32*FIELD_SETLONGS-1) + +#define TIFFExtractData(tif, type, v) \ + ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \ + ((v) >> (tif)->tif_typeshift[type]) & (tif)->tif_typemask[type] : \ + (v) & (tif)->tif_typemask[type])) +#define TIFFInsertData(tif, type, v) \ + ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \ + ((v) & (tif)->tif_typemask[type]) << (tif)->tif_typeshift[type] : \ + (v) & (tif)->tif_typemask[type])) + + +#define BITn(n) (((unsigned long)1L)<<((n)&0x1f)) +#define BITFIELDn(tif, n) ((tif)->tif_dir.td_fieldsset[(n)/32]) +#define TIFFFieldSet(tif, field) (BITFIELDn(tif, field) & BITn(field)) +#define TIFFSetFieldBit(tif, field) (BITFIELDn(tif, field) |= BITn(field)) +#define TIFFClrFieldBit(tif, field) (BITFIELDn(tif, field) &= ~BITn(field)) + +#define FieldSet(fields, f) (fields[(f)/32] & BITn(f)) +#define ResetFieldBit(fields, f) (fields[(f)/32] &= ~BITn(f)) + +#if defined(__cplusplus) +extern "C" { +#endif +extern const TIFFFieldInfo *_TIFFGetFieldInfo(size_t *); +extern const TIFFFieldInfo *_TIFFGetExifFieldInfo(size_t *); +extern void _TIFFSetupFieldInfo(TIFF*, const TIFFFieldInfo[], size_t); +extern int _TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); +extern void _TIFFPrintFieldInfo(TIFF*, FILE*); +extern TIFFDataType _TIFFSampleToTagType(TIFF*); +extern const TIFFFieldInfo* _TIFFFindOrRegisterFieldInfo( TIFF *tif, + ttag_t tag, + TIFFDataType dt ); +extern TIFFFieldInfo* _TIFFCreateAnonFieldInfo( TIFF *tif, ttag_t tag, + TIFFDataType dt ); + +#define _TIFFFindFieldInfo TIFFFindFieldInfo +#define _TIFFFindFieldInfoByName TIFFFindFieldInfoByName +#define _TIFFFieldWithTag TIFFFieldWithTag +#define _TIFFFieldWithName TIFFFieldWithName + +#if defined(__cplusplus) +} +#endif +#endif /* _TIFFDIR_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_dirinfo.c b/tiff/libtiff/tif_dirinfo.c new file mode 100644 index 0000000..0a77c97 --- /dev/null +++ b/tiff/libtiff/tif_dirinfo.c @@ -0,0 +1,888 @@ +/* $Id: tif_dirinfo.c,v 1.65.2.9 2010-06-09 21:15:27 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Core Directory Tag Support. + */ +#include "tiffiop.h" +#include <stdlib.h> +#include <string.h> + +/* + * NB: NB: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG. + * If a tag can have both LONG and SHORT types then the LONG must be + * placed before the SHORT for writing to work properly. + * + * NOTE: The second field (field_readcount) and third field (field_writecount) + * sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3) + * and TIFFTAG_SPP (-2). The macros should be used but would throw off + * the formatting of the code, so please interprete the -1, -2 and -3 + * values accordingly. + */ +static const TIFFFieldInfo +tiffFieldInfo[] = { + { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, FIELD_SUBFILETYPE, + 1, 0, "SubfileType" }, +/* XXX SHORT for compatibility w/ old versions of the library */ + { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE, + 1, 0, "SubfileType" }, + { TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, FIELD_SUBFILETYPE, + 1, 0, "OldSubfileType" }, + { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS, + 0, 0, "ImageWidth" }, + { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS, + 0, 0, "ImageWidth" }, + { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, FIELD_IMAGEDIMENSIONS, + 1, 0, "ImageLength" }, + { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDIMENSIONS, + 1, 0, "ImageLength" }, + { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_SHORT, FIELD_BITSPERSAMPLE, + 0, 0, "BitsPerSample" }, +/* XXX LONG for compatibility with some broken TIFF writers */ + { TIFFTAG_BITSPERSAMPLE, -1,-1, TIFF_LONG, FIELD_BITSPERSAMPLE, + 0, 0, "BitsPerSample" }, + { TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, FIELD_COMPRESSION, + 0, 0, "Compression" }, +/* XXX LONG for compatibility with some broken TIFF writers */ + { TIFFTAG_COMPRESSION, -1, 1, TIFF_LONG, FIELD_COMPRESSION, + 0, 0, "Compression" }, + { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, FIELD_PHOTOMETRIC, + 0, 0, "PhotometricInterpretation" }, +/* XXX LONG for compatibility with some broken TIFF writers */ + { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_LONG, FIELD_PHOTOMETRIC, + 0, 0, "PhotometricInterpretation" }, + { TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, FIELD_THRESHHOLDING, + 1, 0, "Threshholding" }, + { TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, FIELD_IGNORE, + 1, 0, "CellWidth" }, + { TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, FIELD_IGNORE, + 1, 0, "CellLength" }, + { TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, FIELD_FILLORDER, + 0, 0, "FillOrder" }, + { TIFFTAG_DOCUMENTNAME, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "DocumentName" }, + { TIFFTAG_IMAGEDESCRIPTION, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "ImageDescription" }, + { TIFFTAG_MAKE, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "Make" }, + { TIFFTAG_MODEL, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "Model" }, + { TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_LONG, FIELD_STRIPOFFSETS, + 0, 0, "StripOffsets" }, + { TIFFTAG_STRIPOFFSETS, -1,-1, TIFF_SHORT, FIELD_STRIPOFFSETS, + 0, 0, "StripOffsets" }, + { TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, FIELD_ORIENTATION, + 0, 0, "Orientation" }, + { TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, FIELD_SAMPLESPERPIXEL, + 0, 0, "SamplesPerPixel" }, + { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, FIELD_ROWSPERSTRIP, + 0, 0, "RowsPerStrip" }, + { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_SHORT, FIELD_ROWSPERSTRIP, + 0, 0, "RowsPerStrip" }, + { TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_STRIPBYTECOUNTS, + 0, 0, "StripByteCounts" }, + { TIFFTAG_STRIPBYTECOUNTS, -1,-1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS, + 0, 0, "StripByteCounts" }, + { TIFFTAG_MINSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MINSAMPLEVALUE, + 1, 0, "MinSampleValue" }, + { TIFFTAG_MAXSAMPLEVALUE, -2,-1, TIFF_SHORT, FIELD_MAXSAMPLEVALUE, + 1, 0, "MaxSampleValue" }, + { TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION, + 1, 0, "XResolution" }, + { TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_RESOLUTION, + 1, 0, "YResolution" }, + { TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, FIELD_PLANARCONFIG, + 0, 0, "PlanarConfiguration" }, + { TIFFTAG_PAGENAME, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "PageName" }, + { TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION, + 1, 0, "XPosition" }, + { TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, FIELD_POSITION, + 1, 0, "YPosition" }, + { TIFFTAG_FREEOFFSETS, -1,-1, TIFF_LONG, FIELD_IGNORE, + 0, 0, "FreeOffsets" }, + { TIFFTAG_FREEBYTECOUNTS, -1,-1, TIFF_LONG, FIELD_IGNORE, + 0, 0, "FreeByteCounts" }, + { TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE, + 1, 0, "GrayResponseUnit" }, + { TIFFTAG_GRAYRESPONSECURVE,-1,-1, TIFF_SHORT, FIELD_IGNORE, + 1, 0, "GrayResponseCurve" }, + { TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_RESOLUTIONUNIT, + 1, 0, "ResolutionUnit" }, + { TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, FIELD_PAGENUMBER, + 1, 0, "PageNumber" }, + { TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, FIELD_IGNORE, + 1, 0, "ColorResponseUnit" }, + { TIFFTAG_TRANSFERFUNCTION, -1,-1, TIFF_SHORT, FIELD_TRANSFERFUNCTION, + 1, 0, "TransferFunction" }, + { TIFFTAG_SOFTWARE, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "Software" }, + { TIFFTAG_DATETIME, 20,20, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "DateTime" }, + { TIFFTAG_ARTIST, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "Artist" }, + { TIFFTAG_HOSTCOMPUTER, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "HostComputer" }, + { TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "WhitePoint" }, + { TIFFTAG_PRIMARYCHROMATICITIES,6,6,TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "PrimaryChromaticities" }, + { TIFFTAG_COLORMAP, -1,-1, TIFF_SHORT, FIELD_COLORMAP, + 1, 0, "ColorMap" }, + { TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, FIELD_HALFTONEHINTS, + 1, 0, "HalftoneHints" }, + { TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS, + 0, 0, "TileWidth" }, + { TIFFTAG_TILEWIDTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS, + 0, 0, "TileWidth" }, + { TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, FIELD_TILEDIMENSIONS, + 0, 0, "TileLength" }, + { TIFFTAG_TILELENGTH, 1, 1, TIFF_SHORT, FIELD_TILEDIMENSIONS, + 0, 0, "TileLength" }, + { TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG, FIELD_STRIPOFFSETS, + 0, 0, "TileOffsets" }, + { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG, FIELD_STRIPBYTECOUNTS, + 0, 0, "TileByteCounts" }, + { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_SHORT, FIELD_STRIPBYTECOUNTS, + 0, 0, "TileByteCounts" }, + { TIFFTAG_SUBIFD, -1,-1, TIFF_IFD, FIELD_SUBIFD, + 1, 1, "SubIFD" }, + { TIFFTAG_SUBIFD, -1,-1, TIFF_LONG, FIELD_SUBIFD, + 1, 1, "SubIFD" }, + { TIFFTAG_INKSET, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "InkSet" }, + { TIFFTAG_INKNAMES, -1,-1, TIFF_ASCII, FIELD_INKNAMES, + 1, 1, "InkNames" }, + { TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "NumberOfInks" }, + { TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "DotRange" }, + { TIFFTAG_DOTRANGE, 2, 2, TIFF_BYTE, FIELD_CUSTOM, + 0, 0, "DotRange" }, + { TIFFTAG_TARGETPRINTER, -1,-1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "TargetPrinter" }, + { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_SHORT, FIELD_EXTRASAMPLES, + 0, 1, "ExtraSamples" }, +/* XXX for bogus Adobe Photoshop v2.5 files */ + { TIFFTAG_EXTRASAMPLES, -1,-1, TIFF_BYTE, FIELD_EXTRASAMPLES, + 0, 1, "ExtraSamples" }, + { TIFFTAG_SAMPLEFORMAT, -1,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT, + 0, 0, "SampleFormat" }, + { TIFFTAG_SMINSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMINSAMPLEVALUE, + 1, 0, "SMinSampleValue" }, + { TIFFTAG_SMAXSAMPLEVALUE, -2,-1, TIFF_ANY, FIELD_SMAXSAMPLEVALUE, + 1, 0, "SMaxSampleValue" }, + { TIFFTAG_CLIPPATH, -1, -3, TIFF_BYTE, FIELD_CUSTOM, + 0, 1, "ClipPath" }, + { TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SLONG, FIELD_CUSTOM, + 0, 0, "XClipPathUnits" }, + { TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SSHORT, FIELD_CUSTOM, + 0, 0, "XClipPathUnits" }, + { TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SBYTE, FIELD_CUSTOM, + 0, 0, "XClipPathUnits" }, + { TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SLONG, FIELD_CUSTOM, + 0, 0, "YClipPathUnits" }, + { TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SSHORT, FIELD_CUSTOM, + 0, 0, "YClipPathUnits" }, + { TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SBYTE, FIELD_CUSTOM, + 0, 0, "YClipPathUnits" }, + { TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "YCbCrCoefficients" }, + { TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, FIELD_YCBCRSUBSAMPLING, + 0, 0, "YCbCrSubsampling" }, + { TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, FIELD_YCBCRPOSITIONING, + 0, 0, "YCbCrPositioning" }, + { TIFFTAG_REFERENCEBLACKWHITE, 6, 6, TIFF_RATIONAL, FIELD_REFBLACKWHITE, + 1, 0, "ReferenceBlackWhite" }, +/* XXX temporarily accept LONG for backwards compatibility */ + { TIFFTAG_REFERENCEBLACKWHITE, 6, 6, TIFF_LONG, FIELD_REFBLACKWHITE, + 1, 0, "ReferenceBlackWhite" }, + { TIFFTAG_XMLPACKET, -3,-3, TIFF_BYTE, FIELD_CUSTOM, + 0, 1, "XMLPacket" }, +/* begin SGI tags */ + { TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, FIELD_EXTRASAMPLES, + 0, 0, "Matteing" }, + { TIFFTAG_DATATYPE, -2,-1, TIFF_SHORT, FIELD_SAMPLEFORMAT, + 0, 0, "DataType" }, + { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, FIELD_IMAGEDEPTH, + 0, 0, "ImageDepth" }, + { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_SHORT, FIELD_IMAGEDEPTH, + 0, 0, "ImageDepth" }, + { TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, FIELD_TILEDEPTH, + 0, 0, "TileDepth" }, + { TIFFTAG_TILEDEPTH, 1, 1, TIFF_SHORT, FIELD_TILEDEPTH, + 0, 0, "TileDepth" }, +/* end SGI tags */ +/* begin Pixar tags */ + { TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 1, 0, "ImageFullWidth" }, + { TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 1, 0, "ImageFullLength" }, + { TIFFTAG_PIXAR_TEXTUREFORMAT, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "TextureFormat" }, + { TIFFTAG_PIXAR_WRAPMODES, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "TextureWrapModes" }, + { TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, FIELD_CUSTOM, + 1, 0, "FieldOfViewCotangent" }, + { TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16,16, TIFF_FLOAT, + FIELD_CUSTOM, 1, 0, "MatrixWorldToScreen" }, + { TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16,16, TIFF_FLOAT, + FIELD_CUSTOM, 1, 0, "MatrixWorldToCamera" }, + { TIFFTAG_COPYRIGHT, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "Copyright" }, +/* end Pixar tags */ + { TIFFTAG_RICHTIFFIPTC, -3, -3, TIFF_LONG, FIELD_CUSTOM, + 0, 1, "RichTIFFIPTC" }, + { TIFFTAG_PHOTOSHOP, -3, -3, TIFF_BYTE, FIELD_CUSTOM, + 0, 1, "Photoshop" }, + { TIFFTAG_EXIFIFD, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "EXIFIFDOffset" }, + { TIFFTAG_ICCPROFILE, -3, -3, TIFF_UNDEFINED, FIELD_CUSTOM, + 0, 1, "ICC Profile" }, + { TIFFTAG_GPSIFD, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "GPSIFDOffset" }, + { TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, FIELD_CUSTOM, + 0, 0, "StoNits" }, + { TIFFTAG_INTEROPERABILITYIFD, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "InteroperabilityIFDOffset" }, +/* begin DNG tags */ + { TIFFTAG_DNGVERSION, 4, 4, TIFF_BYTE, FIELD_CUSTOM, + 0, 0, "DNGVersion" }, + { TIFFTAG_DNGBACKWARDVERSION, 4, 4, TIFF_BYTE, FIELD_CUSTOM, + 0, 0, "DNGBackwardVersion" }, + { TIFFTAG_UNIQUECAMERAMODEL, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "UniqueCameraModel" }, + { TIFFTAG_LOCALIZEDCAMERAMODEL, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "LocalizedCameraModel" }, + { TIFFTAG_LOCALIZEDCAMERAMODEL, -1, -1, TIFF_BYTE, FIELD_CUSTOM, + 1, 1, "LocalizedCameraModel" }, + { TIFFTAG_CFAPLANECOLOR, -1, -1, TIFF_BYTE, FIELD_CUSTOM, + 0, 1, "CFAPlaneColor" }, + { TIFFTAG_CFALAYOUT, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "CFALayout" }, + { TIFFTAG_LINEARIZATIONTABLE, -1, -1, TIFF_SHORT, FIELD_CUSTOM, + 0, 1, "LinearizationTable" }, + { TIFFTAG_BLACKLEVELREPEATDIM, 2, 2, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "BlackLevelRepeatDim" }, + { TIFFTAG_BLACKLEVEL, -1, -1, TIFF_LONG, FIELD_CUSTOM, + 0, 1, "BlackLevel" }, + { TIFFTAG_BLACKLEVEL, -1, -1, TIFF_SHORT, FIELD_CUSTOM, + 0, 1, "BlackLevel" }, + { TIFFTAG_BLACKLEVEL, -1, -1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 1, "BlackLevel" }, + { TIFFTAG_BLACKLEVELDELTAH, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "BlackLevelDeltaH" }, + { TIFFTAG_BLACKLEVELDELTAV, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "BlackLevelDeltaV" }, + { TIFFTAG_WHITELEVEL, -2, -2, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "WhiteLevel" }, + { TIFFTAG_WHITELEVEL, -2, -2, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "WhiteLevel" }, + { TIFFTAG_DEFAULTSCALE, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "DefaultScale" }, + { TIFFTAG_BESTQUALITYSCALE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "BestQualityScale" }, + { TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "DefaultCropOrigin" }, + { TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "DefaultCropOrigin" }, + { TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "DefaultCropOrigin" }, + { TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "DefaultCropSize" }, + { TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "DefaultCropSize" }, + { TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "DefaultCropSize" }, + { TIFFTAG_COLORMATRIX1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "ColorMatrix1" }, + { TIFFTAG_COLORMATRIX2, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "ColorMatrix2" }, + { TIFFTAG_CAMERACALIBRATION1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "CameraCalibration1" }, + { TIFFTAG_CAMERACALIBRATION2, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "CameraCalibration2" }, + { TIFFTAG_REDUCTIONMATRIX1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "ReductionMatrix1" }, + { TIFFTAG_REDUCTIONMATRIX2, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "ReductionMatrix2" }, + { TIFFTAG_ANALOGBALANCE, -1, -1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 1, "AnalogBalance" }, + { TIFFTAG_ASSHOTNEUTRAL, -1, -1, TIFF_SHORT, FIELD_CUSTOM, + 0, 1, "AsShotNeutral" }, + { TIFFTAG_ASSHOTNEUTRAL, -1, -1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 1, "AsShotNeutral" }, + { TIFFTAG_ASSHOTWHITEXY, 2, 2, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "AsShotWhiteXY" }, + { TIFFTAG_BASELINEEXPOSURE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 0, "BaselineExposure" }, + { TIFFTAG_BASELINENOISE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "BaselineNoise" }, + { TIFFTAG_BASELINESHARPNESS, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "BaselineSharpness" }, + { TIFFTAG_BAYERGREENSPLIT, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "BayerGreenSplit" }, + { TIFFTAG_LINEARRESPONSELIMIT, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "LinearResponseLimit" }, + { TIFFTAG_CAMERASERIALNUMBER, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "CameraSerialNumber" }, + { TIFFTAG_LENSINFO, 4, 4, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "LensInfo" }, + { TIFFTAG_CHROMABLURRADIUS, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "ChromaBlurRadius" }, + { TIFFTAG_ANTIALIASSTRENGTH, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "AntiAliasStrength" }, + { TIFFTAG_SHADOWSCALE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 0, 0, "ShadowScale" }, + { TIFFTAG_DNGPRIVATEDATA, -1, -1, TIFF_BYTE, FIELD_CUSTOM, + 0, 1, "DNGPrivateData" }, + { TIFFTAG_MAKERNOTESAFETY, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "MakerNoteSafety" }, + { TIFFTAG_CALIBRATIONILLUMINANT1, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "CalibrationIlluminant1" }, + { TIFFTAG_CALIBRATIONILLUMINANT2, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "CalibrationIlluminant2" }, + { TIFFTAG_RAWDATAUNIQUEID, 16, 16, TIFF_BYTE, FIELD_CUSTOM, + 0, 0, "RawDataUniqueID" }, + { TIFFTAG_ORIGINALRAWFILENAME, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "OriginalRawFileName" }, + { TIFFTAG_ORIGINALRAWFILENAME, -1, -1, TIFF_BYTE, FIELD_CUSTOM, + 1, 1, "OriginalRawFileName" }, + { TIFFTAG_ORIGINALRAWFILEDATA, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 0, 1, "OriginalRawFileData" }, + { TIFFTAG_ACTIVEAREA, 4, 4, TIFF_LONG, FIELD_CUSTOM, + 0, 0, "ActiveArea" }, + { TIFFTAG_ACTIVEAREA, 4, 4, TIFF_SHORT, FIELD_CUSTOM, + 0, 0, "ActiveArea" }, + { TIFFTAG_MASKEDAREAS, -1, -1, TIFF_LONG, FIELD_CUSTOM, + 0, 1, "MaskedAreas" }, + { TIFFTAG_ASSHOTICCPROFILE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 0, 1, "AsShotICCProfile" }, + { TIFFTAG_ASSHOTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "AsShotPreProfileMatrix" }, + { TIFFTAG_CURRENTICCPROFILE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 0, 1, "CurrentICCProfile" }, + { TIFFTAG_CURRENTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, + 0, 1, "CurrentPreProfileMatrix" }, +/* end DNG tags */ +}; + +static const TIFFFieldInfo +exifFieldInfo[] = { + { EXIFTAG_EXPOSURETIME, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "ExposureTime" }, + { EXIFTAG_FNUMBER, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "FNumber" }, + { EXIFTAG_EXPOSUREPROGRAM, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "ExposureProgram" }, + { EXIFTAG_SPECTRALSENSITIVITY, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "SpectralSensitivity" }, + { EXIFTAG_ISOSPEEDRATINGS, -1, -1, TIFF_SHORT, FIELD_CUSTOM, + 1, 1, "ISOSpeedRatings" }, + { EXIFTAG_OECF, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 1, "OptoelectricConversionFactor" }, + { EXIFTAG_EXIFVERSION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 0, "ExifVersion" }, + { EXIFTAG_DATETIMEORIGINAL, 20, 20, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "DateTimeOriginal" }, + { EXIFTAG_DATETIMEDIGITIZED, 20, 20, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "DateTimeDigitized" }, + { EXIFTAG_COMPONENTSCONFIGURATION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 0, "ComponentsConfiguration" }, + { EXIFTAG_COMPRESSEDBITSPERPIXEL, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "CompressedBitsPerPixel" }, + { EXIFTAG_SHUTTERSPEEDVALUE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM, + 1, 0, "ShutterSpeedValue" }, + { EXIFTAG_APERTUREVALUE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "ApertureValue" }, + { EXIFTAG_BRIGHTNESSVALUE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM, + 1, 0, "BrightnessValue" }, + { EXIFTAG_EXPOSUREBIASVALUE, 1, 1, TIFF_SRATIONAL, FIELD_CUSTOM, + 1, 0, "ExposureBiasValue" }, + { EXIFTAG_MAXAPERTUREVALUE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "MaxApertureValue" }, + { EXIFTAG_SUBJECTDISTANCE, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "SubjectDistance" }, + { EXIFTAG_METERINGMODE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "MeteringMode" }, + { EXIFTAG_LIGHTSOURCE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "LightSource" }, + { EXIFTAG_FLASH, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "Flash" }, + { EXIFTAG_FOCALLENGTH, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "FocalLength" }, + { EXIFTAG_SUBJECTAREA, -1, -1, TIFF_SHORT, FIELD_CUSTOM, + 1, 1, "SubjectArea" }, + { EXIFTAG_MAKERNOTE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 1, "MakerNote" }, + { EXIFTAG_USERCOMMENT, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 1, "UserComment" }, + { EXIFTAG_SUBSECTIME, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "SubSecTime" }, + { EXIFTAG_SUBSECTIMEORIGINAL, -1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "SubSecTimeOriginal" }, + { EXIFTAG_SUBSECTIMEDIGITIZED,-1, -1, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "SubSecTimeDigitized" }, + { EXIFTAG_FLASHPIXVERSION, 4, 4, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 0, "FlashpixVersion" }, + { EXIFTAG_COLORSPACE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "ColorSpace" }, + { EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 1, 0, "PixelXDimension" }, + { EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "PixelXDimension" }, + { EXIFTAG_PIXELYDIMENSION, 1, 1, TIFF_LONG, FIELD_CUSTOM, + 1, 0, "PixelYDimension" }, + { EXIFTAG_PIXELYDIMENSION, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "PixelYDimension" }, + { EXIFTAG_RELATEDSOUNDFILE, 13, 13, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "RelatedSoundFile" }, + { EXIFTAG_FLASHENERGY, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "FlashEnergy" }, + { EXIFTAG_SPATIALFREQUENCYRESPONSE, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 1, "SpatialFrequencyResponse" }, + { EXIFTAG_FOCALPLANEXRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "FocalPlaneXResolution" }, + { EXIFTAG_FOCALPLANEYRESOLUTION, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "FocalPlaneYResolution" }, + { EXIFTAG_FOCALPLANERESOLUTIONUNIT, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "FocalPlaneResolutionUnit" }, + { EXIFTAG_SUBJECTLOCATION, 2, 2, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "SubjectLocation" }, + { EXIFTAG_EXPOSUREINDEX, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "ExposureIndex" }, + { EXIFTAG_SENSINGMETHOD, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "SensingMethod" }, + { EXIFTAG_FILESOURCE, 1, 1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 0, "FileSource" }, + { EXIFTAG_SCENETYPE, 1, 1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 0, "SceneType" }, + { EXIFTAG_CFAPATTERN, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 1, "CFAPattern" }, + { EXIFTAG_CUSTOMRENDERED, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "CustomRendered" }, + { EXIFTAG_EXPOSUREMODE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "ExposureMode" }, + { EXIFTAG_WHITEBALANCE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "WhiteBalance" }, + { EXIFTAG_DIGITALZOOMRATIO, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "DigitalZoomRatio" }, + { EXIFTAG_FOCALLENGTHIN35MMFILM, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "FocalLengthIn35mmFilm" }, + { EXIFTAG_SCENECAPTURETYPE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "SceneCaptureType" }, + { EXIFTAG_GAINCONTROL, 1, 1, TIFF_RATIONAL, FIELD_CUSTOM, + 1, 0, "GainControl" }, + { EXIFTAG_CONTRAST, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "Contrast" }, + { EXIFTAG_SATURATION, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "Saturation" }, + { EXIFTAG_SHARPNESS, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "Sharpness" }, + { EXIFTAG_DEVICESETTINGDESCRIPTION, -1, -1, TIFF_UNDEFINED, FIELD_CUSTOM, + 1, 1, "DeviceSettingDescription" }, + { EXIFTAG_SUBJECTDISTANCERANGE, 1, 1, TIFF_SHORT, FIELD_CUSTOM, + 1, 0, "SubjectDistanceRange" }, + { EXIFTAG_IMAGEUNIQUEID, 33, 33, TIFF_ASCII, FIELD_CUSTOM, + 1, 0, "ImageUniqueID" } +}; + +const TIFFFieldInfo * +_TIFFGetFieldInfo(size_t *size) +{ + *size = TIFFArrayCount(tiffFieldInfo); + return tiffFieldInfo; +} + +const TIFFFieldInfo * +_TIFFGetExifFieldInfo(size_t *size) +{ + *size = TIFFArrayCount(exifFieldInfo); + return exifFieldInfo; +} + +void +_TIFFSetupFieldInfo(TIFF* tif, const TIFFFieldInfo info[], size_t n) +{ + if (tif->tif_fieldinfo) { + size_t i; + + for (i = 0; i < tif->tif_nfields; i++) + { + TIFFFieldInfo *fld = tif->tif_fieldinfo[i]; + if (fld->field_bit == FIELD_CUSTOM && + strncmp("Tag ", fld->field_name, 4) == 0) { + _TIFFfree(fld->field_name); + _TIFFfree(fld); + } + } + + _TIFFfree(tif->tif_fieldinfo); + tif->tif_nfields = 0; + } + if (!_TIFFMergeFieldInfo(tif, info, n)) + { + TIFFErrorExt(tif->tif_clientdata, "_TIFFSetupFieldInfo", + "Setting up field info failed"); + } +} + +static int +tagCompare(const void* a, const void* b) +{ + const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a; + const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b; + /* NB: be careful of return values for 16-bit platforms */ + if (ta->field_tag != tb->field_tag) + return (int)ta->field_tag - (int)tb->field_tag; + else + return (ta->field_type == TIFF_ANY) ? + 0 : ((int)tb->field_type - (int)ta->field_type); +} + +static int +tagNameCompare(const void* a, const void* b) +{ + const TIFFFieldInfo* ta = *(const TIFFFieldInfo**) a; + const TIFFFieldInfo* tb = *(const TIFFFieldInfo**) b; + int ret = strcmp(ta->field_name, tb->field_name); + + if (ret) + return ret; + else + return (ta->field_type == TIFF_ANY) ? + 0 : ((int)tb->field_type - (int)ta->field_type); +} + +void +TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) +{ + if (_TIFFMergeFieldInfo(tif, info, n) < 0) + { + TIFFErrorExt(tif->tif_clientdata, "TIFFMergeFieldInfo", + "Merging block of %d fields failed", n); + } +} + +int +_TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], int n) +{ + static const char module[] = "_TIFFMergeFieldInfo"; + static const char reason[] = "for field info array"; + TIFFFieldInfo** tp; + int i; + + tif->tif_foundfield = NULL; + + if (tif->tif_nfields > 0) { + tif->tif_fieldinfo = (TIFFFieldInfo**) + _TIFFCheckRealloc(tif, tif->tif_fieldinfo, + (tif->tif_nfields + n), + sizeof (TIFFFieldInfo*), reason); + } else { + tif->tif_fieldinfo = (TIFFFieldInfo**) + _TIFFCheckMalloc(tif, n, sizeof (TIFFFieldInfo*), + reason); + } + if (!tif->tif_fieldinfo) { + TIFFErrorExt(tif->tif_clientdata, module, + "Failed to allocate field info array"); + return 0; + } + tp = tif->tif_fieldinfo + tif->tif_nfields; + for (i = 0; i < n; i++) + { + const TIFFFieldInfo *fip = + _TIFFFindFieldInfo(tif, info[i].field_tag, info[i].field_type); + + /* only add definitions that aren't already present */ + if (!fip) { + *tp++ = (TIFFFieldInfo*) (info + i); + tif->tif_nfields++; + } + } + + /* Sort the field info by tag number */ + qsort(tif->tif_fieldinfo, tif->tif_nfields, + sizeof (TIFFFieldInfo*), tagCompare); + + return n; +} + +void +_TIFFPrintFieldInfo(TIFF* tif, FILE* fd) +{ + size_t i; + + fprintf(fd, "%s: \n", tif->tif_name); + for (i = 0; i < tif->tif_nfields; i++) { + const TIFFFieldInfo* fip = tif->tif_fieldinfo[i]; + fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n" + , (int)i + , (unsigned long) fip->field_tag + , fip->field_readcount, fip->field_writecount + , fip->field_type + , fip->field_bit + , fip->field_oktochange ? "TRUE" : "FALSE" + , fip->field_passcount ? "TRUE" : "FALSE" + , fip->field_name + ); + } +} + +/* + * Return size of TIFFDataType in bytes + */ +int +TIFFDataWidth(TIFFDataType type) +{ + switch(type) + { + case 0: /* nothing */ + case 1: /* TIFF_BYTE */ + case 2: /* TIFF_ASCII */ + case 6: /* TIFF_SBYTE */ + case 7: /* TIFF_UNDEFINED */ + return 1; + case 3: /* TIFF_SHORT */ + case 8: /* TIFF_SSHORT */ + return 2; + case 4: /* TIFF_LONG */ + case 9: /* TIFF_SLONG */ + case 11: /* TIFF_FLOAT */ + case 13: /* TIFF_IFD */ + return 4; + case 5: /* TIFF_RATIONAL */ + case 10: /* TIFF_SRATIONAL */ + case 12: /* TIFF_DOUBLE */ + return 8; + default: + return 0; /* will return 0 for unknown types */ + } +} + +/* + * Return size of TIFFDataType in bytes. + * + * XXX: We need a separate function to determine the space needed + * to store the value. For TIFF_RATIONAL values TIFFDataWidth() returns 8, + * but we use 4-byte float to represent rationals. + */ +int +_TIFFDataSize(TIFFDataType type) +{ + switch (type) { + case TIFF_BYTE: + case TIFF_SBYTE: + case TIFF_ASCII: + case TIFF_UNDEFINED: + return 1; + case TIFF_SHORT: + case TIFF_SSHORT: + return 2; + case TIFF_LONG: + case TIFF_SLONG: + case TIFF_FLOAT: + case TIFF_IFD: + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + return 4; + case TIFF_DOUBLE: + return 8; + default: + return 0; + } +} + +/* + * Return nearest TIFFDataType to the sample type of an image. + */ +TIFFDataType +_TIFFSampleToTagType(TIFF* tif) +{ + uint32 bps = TIFFhowmany8(tif->tif_dir.td_bitspersample); + + switch (tif->tif_dir.td_sampleformat) { + case SAMPLEFORMAT_IEEEFP: + return (bps == 4 ? TIFF_FLOAT : TIFF_DOUBLE); + case SAMPLEFORMAT_INT: + return (bps <= 1 ? TIFF_SBYTE : + bps <= 2 ? TIFF_SSHORT : TIFF_SLONG); + case SAMPLEFORMAT_UINT: + return (bps <= 1 ? TIFF_BYTE : + bps <= 2 ? TIFF_SHORT : TIFF_LONG); + case SAMPLEFORMAT_VOID: + return (TIFF_UNDEFINED); + } + /*NOTREACHED*/ + return (TIFF_UNDEFINED); +} + +const TIFFFieldInfo* +_TIFFFindFieldInfo(TIFF* tif, ttag_t tag, TIFFDataType dt) +{ + TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0}; + TIFFFieldInfo* pkey = &key; + const TIFFFieldInfo **ret; + + if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag && + (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) + return tif->tif_foundfield; + + /* If we are invoked with no field information, then just return. */ + if ( !tif->tif_fieldinfo ) { + return NULL; + } + + /* NB: use sorted search (e.g. binary search) */ + key.field_tag = tag; + key.field_type = dt; + + ret = (const TIFFFieldInfo **) bsearch(&pkey, + tif->tif_fieldinfo, + tif->tif_nfields, + sizeof(TIFFFieldInfo *), + tagCompare); + return tif->tif_foundfield = (ret ? *ret : NULL); +} + +const TIFFFieldInfo* +_TIFFFindFieldInfoByName(TIFF* tif, const char *field_name, TIFFDataType dt) +{ + TIFFFieldInfo key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0}; + TIFFFieldInfo* pkey = &key; + const TIFFFieldInfo **ret; + + if (tif->tif_foundfield + && streq(tif->tif_foundfield->field_name, field_name) + && (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) + return (tif->tif_foundfield); + + /* If we are invoked with no field information, then just return. */ + if ( !tif->tif_fieldinfo ) { + return NULL; + } + + /* NB: use sorted search (e.g. binary search) */ + key.field_name = (char *)field_name; + key.field_type = dt; + + ret = (const TIFFFieldInfo **) lfind(&pkey, + tif->tif_fieldinfo, + &tif->tif_nfields, + sizeof(TIFFFieldInfo *), + tagNameCompare); + return tif->tif_foundfield = (ret ? *ret : NULL); +} + +const TIFFFieldInfo* +_TIFFFieldWithTag(TIFF* tif, ttag_t tag) +{ + const TIFFFieldInfo* fip = _TIFFFindFieldInfo(tif, tag, TIFF_ANY); + if (!fip) { + TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithTag", + "Internal error, unknown tag 0x%x", + (unsigned int) tag); + assert(fip != NULL); + /*NOTREACHED*/ + } + return (fip); +} + +const TIFFFieldInfo* +_TIFFFieldWithName(TIFF* tif, const char *field_name) +{ + const TIFFFieldInfo* fip = + _TIFFFindFieldInfoByName(tif, field_name, TIFF_ANY); + if (!fip) { + TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithName", + "Internal error, unknown tag %s", field_name); + assert(fip != NULL); + /*NOTREACHED*/ + } + return (fip); +} + +const TIFFFieldInfo* +_TIFFFindOrRegisterFieldInfo( TIFF *tif, ttag_t tag, TIFFDataType dt ) + +{ + const TIFFFieldInfo *fld; + + fld = _TIFFFindFieldInfo( tif, tag, dt ); + if( fld == NULL ) + { + fld = _TIFFCreateAnonFieldInfo( tif, tag, dt ); + if (!_TIFFMergeFieldInfo(tif, fld, 1)) + return NULL; + } + + return fld; +} + +TIFFFieldInfo* +_TIFFCreateAnonFieldInfo(TIFF *tif, ttag_t tag, TIFFDataType field_type) +{ + TIFFFieldInfo *fld; + (void) tif; + + fld = (TIFFFieldInfo *) _TIFFmalloc(sizeof (TIFFFieldInfo)); + if (fld == NULL) + return NULL; + _TIFFmemset( fld, 0, sizeof(TIFFFieldInfo) ); + + fld->field_tag = tag; + fld->field_readcount = TIFF_VARIABLE2; + fld->field_writecount = TIFF_VARIABLE2; + fld->field_type = field_type; + fld->field_bit = FIELD_CUSTOM; + fld->field_oktochange = TRUE; + fld->field_passcount = TRUE; + fld->field_name = (char *) _TIFFmalloc(32); + if (fld->field_name == NULL) { + _TIFFfree(fld); + return NULL; + } + + /* + * note that this name is a special sign to TIFFClose() and + * _TIFFSetupFieldInfo() to free the field + */ + sprintf(fld->field_name, "Tag %d", (int) tag); + + return fld; +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_dirread.c b/tiff/libtiff/tif_dirread.c new file mode 100644 index 0000000..907b531 --- /dev/null +++ b/tiff/libtiff/tif_dirread.c @@ -0,0 +1,2081 @@ +/* $Id: tif_dirread.c,v 1.92.2.9 2010-06-14 00:21:46 fwarmerdam Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Directory Read Support Routines. + */ +#include "tiffiop.h" + +#define IGNORE 0 /* tag placeholder used below */ + +#ifdef HAVE_IEEEFP +# define TIFFCvtIEEEFloatToNative(tif, n, fp) +# define TIFFCvtIEEEDoubleToNative(tif, n, dp) +#else +extern void TIFFCvtIEEEFloatToNative(TIFF*, uint32, float*); +extern void TIFFCvtIEEEDoubleToNative(TIFF*, uint32, double*); +#endif + +static TIFFDirEntry* TIFFReadDirectoryFind(TIFFDirEntry* dir, + uint16 dircount, uint16 tagid); +static int EstimateStripByteCounts(TIFF*, TIFFDirEntry*, uint16); +static void MissingRequired(TIFF*, const char*); +static int TIFFCheckDirOffset(TIFF*, toff_t); +static int CheckDirCount(TIFF*, TIFFDirEntry*, uint32); +static uint16 TIFFFetchDirectory(TIFF*, toff_t, TIFFDirEntry**, toff_t *); +static tsize_t TIFFFetchData(TIFF*, TIFFDirEntry*, char*); +static tsize_t TIFFFetchString(TIFF*, TIFFDirEntry*, char*); +static float TIFFFetchRational(TIFF*, TIFFDirEntry*); +static int TIFFFetchNormalTag(TIFF*, TIFFDirEntry*); +static int TIFFFetchPerSampleShorts(TIFF*, TIFFDirEntry*, uint16*); +static int TIFFFetchPerSampleLongs(TIFF*, TIFFDirEntry*, uint32*); +static int TIFFFetchPerSampleAnys(TIFF*, TIFFDirEntry*, double*); +static int TIFFFetchShortArray(TIFF*, TIFFDirEntry*, uint16*); +static int TIFFFetchStripThing(TIFF*, TIFFDirEntry*, long, uint32**); +static int TIFFFetchRefBlackWhite(TIFF*, TIFFDirEntry*); +static int TIFFFetchSubjectDistance(TIFF*, TIFFDirEntry*); +static float TIFFFetchFloat(TIFF*, TIFFDirEntry*); +static int TIFFFetchFloatArray(TIFF*, TIFFDirEntry*, float*); +static int TIFFFetchDoubleArray(TIFF*, TIFFDirEntry*, double*); +static int TIFFFetchAnyArray(TIFF*, TIFFDirEntry*, double*); +static int TIFFFetchShortPair(TIFF*, TIFFDirEntry*); +static void ChopUpSingleUncompressedStrip(TIFF*); + +/* + * Read the next TIFF directory from a file and convert it to the internal + * format. We read directories sequentially. + */ +int +TIFFReadDirectory(TIFF* tif) +{ + static const char module[] = "TIFFReadDirectory"; + + int n; + TIFFDirectory* td; + TIFFDirEntry *dp, *dir = NULL; + uint16 iv; + uint32 v; + const TIFFFieldInfo* fip; + size_t fix; + uint16 dircount; + int diroutoforderwarning = 0, compressionknown = 0; + int haveunknowntags = 0; + + tif->tif_diroff = tif->tif_nextdiroff; + /* + * Check whether we have the last offset or bad offset (IFD looping). + */ + if (!TIFFCheckDirOffset(tif, tif->tif_nextdiroff)) + return 0; + /* + * Cleanup any previous compression state. + */ + (*tif->tif_cleanup)(tif); + tif->tif_curdir++; + dircount = TIFFFetchDirectory(tif, tif->tif_nextdiroff, + &dir, &tif->tif_nextdiroff); + if (!dircount) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Failed to read directory at offset %u", + tif->tif_name, tif->tif_nextdiroff); + return 0; + } + + tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */ + /* + * Setup default value and then make a pass over + * the fields to check type and tag information, + * and to extract info required to size data + * structures. A second pass is made afterwards + * to read in everthing not taken in the first pass. + */ + td = &tif->tif_dir; + /* free any old stuff and reinit */ + TIFFFreeDirectory(tif); + TIFFDefaultDirectory(tif); + /* + * Electronic Arts writes gray-scale TIFF files + * without a PlanarConfiguration directory entry. + * Thus we setup a default value here, even though + * the TIFF spec says there is no default value. + */ + TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); + + /* + * Sigh, we must make a separate pass through the + * directory for the following reason: + * + * We must process the Compression tag in the first pass + * in order to merge in codec-private tag definitions (otherwise + * we may get complaints about unknown tags). However, the + * Compression tag may be dependent on the SamplesPerPixel + * tag value because older TIFF specs permited Compression + * to be written as a SamplesPerPixel-count tag entry. + * Thus if we don't first figure out the correct SamplesPerPixel + * tag value then we may end up ignoring the Compression tag + * value because it has an incorrect count value (if the + * true value of SamplesPerPixel is not 1). + * + * It sure would have been nice if Aldus had really thought + * this stuff through carefully. + */ + for (dp = dir, n = dircount; n > 0; n--, dp++) { + if (tif->tif_flags & TIFF_SWAB) { + TIFFSwabArrayOfShort(&dp->tdir_tag, 2); + TIFFSwabArrayOfLong(&dp->tdir_count, 2); + } + if (dp->tdir_tag == TIFFTAG_SAMPLESPERPIXEL) { + if (!TIFFFetchNormalTag(tif, dp)) + goto bad; + dp->tdir_tag = IGNORE; + } + } + /* + * First real pass over the directory. + */ + fix = 0; + for (dp = dir, n = dircount; n > 0; n--, dp++) { + + if (dp->tdir_tag == IGNORE) + continue; + if (fix >= tif->tif_nfields) + fix = 0; + + /* + * Silicon Beach (at least) writes unordered + * directory tags (violating the spec). Handle + * it here, but be obnoxious (maybe they'll fix it?). + */ + if (dp->tdir_tag < tif->tif_fieldinfo[fix]->field_tag) { + if (!diroutoforderwarning) { + TIFFWarningExt(tif->tif_clientdata, module, + "%s: invalid TIFF directory; tags are not sorted in ascending order", + tif->tif_name); + diroutoforderwarning = 1; + } + fix = 0; /* O(n^2) */ + } + while (fix < tif->tif_nfields && + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + fix++; + if (fix >= tif->tif_nfields || + tif->tif_fieldinfo[fix]->field_tag != dp->tdir_tag) { + /* Unknown tag ... we'll deal with it below */ + haveunknowntags = 1; + continue; + } + /* + * Null out old tags that we ignore. + */ + if (tif->tif_fieldinfo[fix]->field_bit == FIELD_IGNORE) { + ignore: + dp->tdir_tag = IGNORE; + continue; + } + /* + * Check data type. + */ + fip = tif->tif_fieldinfo[fix]; + while (dp->tdir_type != (unsigned short) fip->field_type + && fix < tif->tif_nfields) { + if (fip->field_type == TIFF_ANY) /* wildcard */ + break; + fip = tif->tif_fieldinfo[++fix]; + if (fix >= tif->tif_nfields || + fip->field_tag != dp->tdir_tag) { + TIFFWarningExt(tif->tif_clientdata, module, + "%s: wrong data type %d for \"%s\"; tag ignored", + tif->tif_name, dp->tdir_type, + tif->tif_fieldinfo[fix-1]->field_name); + goto ignore; + } + } + /* + * Check count if known in advance. + */ + if (fip->field_readcount != TIFF_VARIABLE + && fip->field_readcount != TIFF_VARIABLE2) { + uint32 expected = (fip->field_readcount == TIFF_SPP) ? + (uint32) td->td_samplesperpixel : + (uint32) fip->field_readcount; + if (!CheckDirCount(tif, dp, expected)) + goto ignore; + } + + switch (dp->tdir_tag) { + case TIFFTAG_COMPRESSION: + /* + * The 5.0 spec says the Compression tag has + * one value, while earlier specs say it has + * one value per sample. Because of this, we + * accept the tag if one value is supplied. + */ + if (dp->tdir_count == 1) { + v = TIFFExtractData(tif, + dp->tdir_type, dp->tdir_offset); + if (!TIFFSetField(tif, dp->tdir_tag, (uint16)v)) + goto bad; + else + compressionknown = 1; + break; + /* XXX: workaround for broken TIFFs */ + } else if (dp->tdir_type == TIFF_LONG) { + if (!TIFFFetchPerSampleLongs(tif, dp, &v) || + !TIFFSetField(tif, dp->tdir_tag, (uint16)v)) + goto bad; + } else { + if (!TIFFFetchPerSampleShorts(tif, dp, &iv) + || !TIFFSetField(tif, dp->tdir_tag, iv)) + goto bad; + } + dp->tdir_tag = IGNORE; + break; + case TIFFTAG_STRIPOFFSETS: + case TIFFTAG_STRIPBYTECOUNTS: + case TIFFTAG_TILEOFFSETS: + case TIFFTAG_TILEBYTECOUNTS: + TIFFSetFieldBit(tif, fip->field_bit); + break; + case TIFFTAG_IMAGEWIDTH: + case TIFFTAG_IMAGELENGTH: + case TIFFTAG_IMAGEDEPTH: + case TIFFTAG_TILELENGTH: + case TIFFTAG_TILEWIDTH: + case TIFFTAG_TILEDEPTH: + case TIFFTAG_PLANARCONFIG: + case TIFFTAG_ROWSPERSTRIP: + case TIFFTAG_EXTRASAMPLES: + if (!TIFFFetchNormalTag(tif, dp)) + goto bad; + dp->tdir_tag = IGNORE; + break; + } + } + + /* + * If we saw any unknown tags, make an extra pass over the directory + * to deal with them. This must be done separately because the tags + * could have become known when we registered a codec after finding + * the Compression tag. In a correctly-sorted directory there's + * no problem because Compression will come before any codec-private + * tags, but if the sorting is wrong that might not hold. + */ + if (haveunknowntags) { + fix = 0; + for (dp = dir, n = dircount; n > 0; n--, dp++) { + if (dp->tdir_tag == IGNORE) + continue; + if (fix >= tif->tif_nfields || + dp->tdir_tag < tif->tif_fieldinfo[fix]->field_tag) + fix = 0; /* O(n^2) */ + while (fix < tif->tif_nfields && + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + fix++; + if (fix >= tif->tif_nfields || + tif->tif_fieldinfo[fix]->field_tag != dp->tdir_tag) { + + TIFFWarningExt(tif->tif_clientdata, + module, + "%s: unknown field with tag %d (0x%x) encountered", + tif->tif_name, + dp->tdir_tag, + dp->tdir_tag); + + if (!_TIFFMergeFieldInfo(tif, + _TIFFCreateAnonFieldInfo(tif, + dp->tdir_tag, + (TIFFDataType) dp->tdir_type), + 1)) + { + TIFFWarningExt(tif->tif_clientdata, + module, + "Registering anonymous field with tag %d (0x%x) failed", + dp->tdir_tag, + dp->tdir_tag); + dp->tdir_tag = IGNORE; + continue; + } + fix = 0; + while (fix < tif->tif_nfields && + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + fix++; + } + /* + * Check data type. + */ + fip = tif->tif_fieldinfo[fix]; + while (dp->tdir_type != (unsigned short) fip->field_type + && fix < tif->tif_nfields) { + if (fip->field_type == TIFF_ANY) /* wildcard */ + break; + fip = tif->tif_fieldinfo[++fix]; + if (fix >= tif->tif_nfields || + fip->field_tag != dp->tdir_tag) { + TIFFWarningExt(tif->tif_clientdata, module, + "%s: wrong data type %d for \"%s\"; tag ignored", + tif->tif_name, dp->tdir_type, + tif->tif_fieldinfo[fix-1]->field_name); + dp->tdir_tag = IGNORE; + break; + } + } + } + } + + /* + * XXX: OJPEG hack. + * If a) compression is OJPEG, b) planarconfig tag says it's separate, + * c) strip offsets/bytecounts tag are both present and + * d) both contain exactly one value, then we consistently find + * that the buggy implementation of the buggy compression scheme + * matches contig planarconfig best. So we 'fix-up' the tag here + */ + if ((td->td_compression==COMPRESSION_OJPEG) && + (td->td_planarconfig==PLANARCONFIG_SEPARATE)) { + dp = TIFFReadDirectoryFind(dir,dircount,TIFFTAG_STRIPOFFSETS); + if ((dp!=0) && (dp->tdir_count==1)) { + dp = TIFFReadDirectoryFind(dir, dircount, + TIFFTAG_STRIPBYTECOUNTS); + if ((dp!=0) && (dp->tdir_count==1)) { + td->td_planarconfig=PLANARCONFIG_CONTIG; + TIFFWarningExt(tif->tif_clientdata, + "TIFFReadDirectory", + "Planarconfig tag value assumed incorrect, " + "assuming data is contig instead of chunky"); + } + } + } + + /* + * Allocate directory structure and setup defaults. + */ + if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) { + MissingRequired(tif, "ImageLength"); + goto bad; + } + /* + * Setup appropriate structures (by strip or by tile) + */ + if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { + td->td_nstrips = TIFFNumberOfStrips(tif); + td->td_tilewidth = td->td_imagewidth; + td->td_tilelength = td->td_rowsperstrip; + td->td_tiledepth = td->td_imagedepth; + tif->tif_flags &= ~TIFF_ISTILED; + } else { + td->td_nstrips = TIFFNumberOfTiles(tif); + tif->tif_flags |= TIFF_ISTILED; + } + if (!td->td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero number of %s", + tif->tif_name, isTiled(tif) ? "tiles" : "strips"); + goto bad; + } + td->td_stripsperimage = td->td_nstrips; + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) + td->td_stripsperimage /= td->td_samplesperpixel; + if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) { + if ((td->td_compression==COMPRESSION_OJPEG) && + (isTiled(tif)==0) && + (td->td_nstrips==1)) { + /* + * XXX: OJPEG hack. + * If a) compression is OJPEG, b) it's not a tiled TIFF, + * and c) the number of strips is 1, + * then we tolerate the absence of stripoffsets tag, + * because, presumably, all required data is in the + * JpegInterchangeFormat stream. + */ + TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); + } else { + MissingRequired(tif, + isTiled(tif) ? "TileOffsets" : "StripOffsets"); + goto bad; + } + } + + /* + * Second pass: extract other information. + */ + for (dp = dir, n = dircount; n > 0; n--, dp++) { + if (dp->tdir_tag == IGNORE) + continue; + switch (dp->tdir_tag) { + case TIFFTAG_MINSAMPLEVALUE: + case TIFFTAG_MAXSAMPLEVALUE: + case TIFFTAG_BITSPERSAMPLE: + case TIFFTAG_DATATYPE: + case TIFFTAG_SAMPLEFORMAT: + /* + * The 5.0 spec says the Compression tag has + * one value, while earlier specs say it has + * one value per sample. Because of this, we + * accept the tag if one value is supplied. + * + * The MinSampleValue, MaxSampleValue, BitsPerSample + * DataType and SampleFormat tags are supposed to be + * written as one value/sample, but some vendors + * incorrectly write one value only -- so we accept + * that as well (yech). Other vendors write correct + * value for NumberOfSamples, but incorrect one for + * BitsPerSample and friends, and we will read this + * too. + */ + if (dp->tdir_count == 1) { + v = TIFFExtractData(tif, + dp->tdir_type, dp->tdir_offset); + if (!TIFFSetField(tif, dp->tdir_tag, (uint16)v)) + goto bad; + /* XXX: workaround for broken TIFFs */ + } else if (dp->tdir_tag == TIFFTAG_BITSPERSAMPLE + && dp->tdir_type == TIFF_LONG) { + if (!TIFFFetchPerSampleLongs(tif, dp, &v) || + !TIFFSetField(tif, dp->tdir_tag, (uint16)v)) + goto bad; + } else { + if (!TIFFFetchPerSampleShorts(tif, dp, &iv) || + !TIFFSetField(tif, dp->tdir_tag, iv)) + goto bad; + } + break; + case TIFFTAG_SMINSAMPLEVALUE: + case TIFFTAG_SMAXSAMPLEVALUE: + { + double dv = 0.0; + if (!TIFFFetchPerSampleAnys(tif, dp, &dv) || + !TIFFSetField(tif, dp->tdir_tag, dv)) + goto bad; + } + break; + case TIFFTAG_STRIPOFFSETS: + case TIFFTAG_TILEOFFSETS: + if (!TIFFFetchStripThing(tif, dp, + td->td_nstrips, &td->td_stripoffset)) + goto bad; + break; + case TIFFTAG_STRIPBYTECOUNTS: + case TIFFTAG_TILEBYTECOUNTS: + if (!TIFFFetchStripThing(tif, dp, + td->td_nstrips, &td->td_stripbytecount)) + goto bad; + break; + case TIFFTAG_COLORMAP: + case TIFFTAG_TRANSFERFUNCTION: + { + char* cp; + /* + * TransferFunction can have either 1x or 3x + * data values; Colormap can have only 3x + * items. + */ + v = 1L<<td->td_bitspersample; + if (dp->tdir_tag == TIFFTAG_COLORMAP || + dp->tdir_count != v) { + if (!CheckDirCount(tif, dp, 3 * v)) + break; + } + v *= sizeof(uint16); + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, + sizeof (uint16), + "to read \"TransferFunction\" tag"); + if (cp != NULL) { + if (TIFFFetchData(tif, dp, cp)) { + /* + * This deals with there being + * only one array to apply to + * all samples. + */ + uint32 c = 1L << td->td_bitspersample; + if (dp->tdir_count == c) + v = 0L; + TIFFSetField(tif, dp->tdir_tag, + cp, cp+v, cp+2*v); + } + _TIFFfree(cp); + } + break; + } + case TIFFTAG_PAGENUMBER: + case TIFFTAG_HALFTONEHINTS: + case TIFFTAG_YCBCRSUBSAMPLING: + case TIFFTAG_DOTRANGE: + (void) TIFFFetchShortPair(tif, dp); + break; + case TIFFTAG_REFERENCEBLACKWHITE: + (void) TIFFFetchRefBlackWhite(tif, dp); + break; +/* BEGIN REV 4.0 COMPATIBILITY */ + case TIFFTAG_OSUBFILETYPE: + v = 0L; + switch (TIFFExtractData(tif, dp->tdir_type, + dp->tdir_offset)) { + case OFILETYPE_REDUCEDIMAGE: + v = FILETYPE_REDUCEDIMAGE; + break; + case OFILETYPE_PAGE: + v = FILETYPE_PAGE; + break; + } + if (v) + TIFFSetField(tif, TIFFTAG_SUBFILETYPE, v); + break; +/* END REV 4.0 COMPATIBILITY */ + default: + (void) TIFFFetchNormalTag(tif, dp); + break; + } + } + /* + * OJPEG hack: + * - If a) compression is OJPEG, and b) photometric tag is missing, + * then we consistently find that photometric should be YCbCr + * - If a) compression is OJPEG, and b) photometric tag says it's RGB, + * then we consistently find that the buggy implementation of the + * buggy compression scheme matches photometric YCbCr instead. + * - If a) compression is OJPEG, and b) bitspersample tag is missing, + * then we consistently find bitspersample should be 8. + * - If a) compression is OJPEG, b) samplesperpixel tag is missing, + * and c) photometric is RGB or YCbCr, then we consistently find + * samplesperpixel should be 3 + * - If a) compression is OJPEG, b) samplesperpixel tag is missing, + * and c) photometric is MINISWHITE or MINISBLACK, then we consistently + * find samplesperpixel should be 3 + */ + if (td->td_compression==COMPRESSION_OJPEG) + { + if (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) + { + TIFFWarningExt(tif->tif_clientdata, "TIFFReadDirectory", + "Photometric tag is missing, assuming data is YCbCr"); + if (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YCBCR)) + goto bad; + } + else if (td->td_photometric==PHOTOMETRIC_RGB) + { + td->td_photometric=PHOTOMETRIC_YCBCR; + TIFFWarningExt(tif->tif_clientdata, "TIFFReadDirectory", + "Photometric tag value assumed incorrect, " + "assuming data is YCbCr instead of RGB"); + } + if (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) + { + TIFFWarningExt(tif->tif_clientdata,"TIFFReadDirectory", + "BitsPerSample tag is missing, assuming 8 bits per sample"); + if (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8)) + goto bad; + } + if (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) + { + if ((td->td_photometric==PHOTOMETRIC_RGB) + || (td->td_photometric==PHOTOMETRIC_YCBCR)) + { + TIFFWarningExt(tif->tif_clientdata, + "TIFFReadDirectory", + "SamplesPerPixel tag is missing, " + "assuming correct SamplesPerPixel value is 3"); + if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3)) + goto bad; + } + else if ((td->td_photometric==PHOTOMETRIC_MINISWHITE) + || (td->td_photometric==PHOTOMETRIC_MINISBLACK)) + { + TIFFWarningExt(tif->tif_clientdata, + "TIFFReadDirectory", + "SamplesPerPixel tag is missing, " + "assuming correct SamplesPerPixel value is 1"); + if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1)) + goto bad; + } + } + } + /* + * Verify Palette image has a Colormap. + */ + if (td->td_photometric == PHOTOMETRIC_PALETTE && + !TIFFFieldSet(tif, FIELD_COLORMAP)) { + MissingRequired(tif, "Colormap"); + goto bad; + } + /* + * OJPEG hack: + * We do no further messing with strip/tile offsets/bytecounts in OJPEG + * TIFFs + */ + if (td->td_compression!=COMPRESSION_OJPEG) + { + /* + * Attempt to deal with a missing StripByteCounts tag. + */ + if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) { + /* + * Some manufacturers violate the spec by not giving + * the size of the strips. In this case, assume there + * is one uncompressed strip of data. + */ + if ((td->td_planarconfig == PLANARCONFIG_CONTIG && + td->td_nstrips > 1) || + (td->td_planarconfig == PLANARCONFIG_SEPARATE && + td->td_nstrips != td->td_samplesperpixel)) { + MissingRequired(tif, "StripByteCounts"); + goto bad; + } + TIFFWarningExt(tif->tif_clientdata, module, + "%s: TIFF directory is missing required " + "\"%s\" field, calculating from imagelength", + tif->tif_name, + _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); + if (EstimateStripByteCounts(tif, dir, dircount) < 0) + goto bad; + /* + * Assume we have wrong StripByteCount value (in case + * of single strip) in following cases: + * - it is equal to zero along with StripOffset; + * - it is larger than file itself (in case of uncompressed + * image); + * - it is smaller than the size of the bytes per row + * multiplied on the number of rows. The last case should + * not be checked in the case of writing new image, + * because we may do not know the exact strip size + * until the whole image will be written and directory + * dumped out. + */ + #define BYTECOUNTLOOKSBAD \ + ( (td->td_stripbytecount[0] == 0 && td->td_stripoffset[0] != 0) || \ + (td->td_compression == COMPRESSION_NONE && \ + td->td_stripbytecount[0] > TIFFGetFileSize(tif) - td->td_stripoffset[0]) || \ + (tif->tif_mode == O_RDONLY && \ + td->td_compression == COMPRESSION_NONE && \ + td->td_stripbytecount[0] < TIFFScanlineSize(tif) * td->td_imagelength) ) + + } else if (td->td_nstrips == 1 + && td->td_stripoffset[0] != 0 + && BYTECOUNTLOOKSBAD) { + /* + * XXX: Plexus (and others) sometimes give a value of + * zero for a tag when they don't know what the + * correct value is! Try and handle the simple case + * of estimating the size of a one strip image. + */ + TIFFWarningExt(tif->tif_clientdata, module, + "%s: Bogus \"%s\" field, ignoring and calculating from imagelength", + tif->tif_name, + _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); + if(EstimateStripByteCounts(tif, dir, dircount) < 0) + goto bad; + } else if (td->td_planarconfig == PLANARCONFIG_CONTIG + && td->td_nstrips > 2 + && td->td_compression == COMPRESSION_NONE + && td->td_stripbytecount[0] != td->td_stripbytecount[1] + && td->td_stripbytecount[0] != 0 + && td->td_stripbytecount[1] != 0 ) { + /* + * XXX: Some vendors fill StripByteCount array with + * absolutely wrong values (it can be equal to + * StripOffset array, for example). Catch this case + * here. + */ + TIFFWarningExt(tif->tif_clientdata, module, + "%s: Wrong \"%s\" field, ignoring and calculating from imagelength", + tif->tif_name, + _TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name); + if (EstimateStripByteCounts(tif, dir, dircount) < 0) + goto bad; + } + } + if (dir) { + _TIFFfree((char *)dir); + dir = NULL; + } + if (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE)) + td->td_maxsamplevalue = (uint16)((1L<<td->td_bitspersample)-1); + /* + * Setup default compression scheme. + */ + + /* + * XXX: We can optimize checking for the strip bounds using the sorted + * bytecounts array. See also comments for TIFFAppendToStrip() + * function in tif_write.c. + */ + if (td->td_nstrips > 1) { + tstrip_t strip; + + td->td_stripbytecountsorted = 1; + for (strip = 1; strip < td->td_nstrips; strip++) { + if (td->td_stripoffset[strip - 1] > + td->td_stripoffset[strip]) { + td->td_stripbytecountsorted = 0; + break; + } + } + } + + if (!TIFFFieldSet(tif, FIELD_COMPRESSION)) + TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); + /* + * Some manufacturers make life difficult by writing + * large amounts of uncompressed data as a single strip. + * This is contrary to the recommendations of the spec. + * The following makes an attempt at breaking such images + * into strips closer to the recommended 8k bytes. A + * side effect, however, is that the RowsPerStrip tag + * value may be changed. + */ + if (td->td_nstrips == 1 && td->td_compression == COMPRESSION_NONE && + (tif->tif_flags & (TIFF_STRIPCHOP|TIFF_ISTILED)) == TIFF_STRIPCHOP) + ChopUpSingleUncompressedStrip(tif); + + /* + * Reinitialize i/o since we are starting on a new directory. + */ + tif->tif_row = (uint32) -1; + tif->tif_curstrip = (tstrip_t) -1; + tif->tif_col = (uint32) -1; + tif->tif_curtile = (ttile_t) -1; + tif->tif_tilesize = (tsize_t) -1; + + tif->tif_scanlinesize = TIFFScanlineSize(tif); + if (!tif->tif_scanlinesize) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero scanline size", + tif->tif_name); + return (0); + } + + if (isTiled(tif)) { + tif->tif_tilesize = TIFFTileSize(tif); + if (!tif->tif_tilesize) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero tile size", + tif->tif_name); + return (0); + } + } else { + if (!TIFFStripSize(tif)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: cannot handle zero strip size", + tif->tif_name); + return (0); + } + } + return (1); +bad: + if (dir) + _TIFFfree(dir); + return (0); +} + +static TIFFDirEntry* +TIFFReadDirectoryFind(TIFFDirEntry* dir, uint16 dircount, uint16 tagid) +{ + TIFFDirEntry* m; + uint16 n; + for (m=dir, n=0; n<dircount; m++, n++) + { + if (m->tdir_tag==tagid) + return(m); + } + return(0); +} + +/* + * Read custom directory from the arbitarry offset. + * The code is very similar to TIFFReadDirectory(). + */ +int +TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, + const TIFFFieldInfo info[], size_t n) +{ + static const char module[] = "TIFFReadCustomDirectory"; + + TIFFDirectory* td = &tif->tif_dir; + TIFFDirEntry *dp, *dir = NULL; + const TIFFFieldInfo* fip; + size_t fix; + uint16 i, dircount; + + _TIFFSetupFieldInfo(tif, info, n); + + dircount = TIFFFetchDirectory(tif, diroff, &dir, NULL); + if (!dircount) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Failed to read custom directory at offset %u", + tif->tif_name, diroff); + return 0; + } + + TIFFFreeDirectory(tif); + _TIFFmemset(&tif->tif_dir, 0, sizeof(TIFFDirectory)); + + fix = 0; + for (dp = dir, i = dircount; i > 0; i--, dp++) { + if (tif->tif_flags & TIFF_SWAB) { + TIFFSwabArrayOfShort(&dp->tdir_tag, 2); + TIFFSwabArrayOfLong(&dp->tdir_count, 2); + } + + if (fix >= tif->tif_nfields || dp->tdir_tag == IGNORE) + continue; + + while (fix < tif->tif_nfields && + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + fix++; + + if (fix >= tif->tif_nfields || + tif->tif_fieldinfo[fix]->field_tag != dp->tdir_tag) { + + TIFFWarningExt(tif->tif_clientdata, module, + "%s: unknown field with tag %d (0x%x) encountered", + tif->tif_name, dp->tdir_tag, dp->tdir_tag); + if (!_TIFFMergeFieldInfo(tif, + _TIFFCreateAnonFieldInfo(tif, + dp->tdir_tag, + (TIFFDataType) dp->tdir_type), + 1)) + { + TIFFWarningExt(tif->tif_clientdata, module, + "Registering anonymous field with tag %d (0x%x) failed", + dp->tdir_tag, dp->tdir_tag); + goto ignore; + } + + fix = 0; + while (fix < tif->tif_nfields && + tif->tif_fieldinfo[fix]->field_tag < dp->tdir_tag) + fix++; + } + /* + * Null out old tags that we ignore. + */ + if (tif->tif_fieldinfo[fix]->field_bit == FIELD_IGNORE) { + ignore: + dp->tdir_tag = IGNORE; + continue; + } + /* + * Check data type. + */ + fip = tif->tif_fieldinfo[fix]; + while (dp->tdir_type != (unsigned short) fip->field_type + && fix < tif->tif_nfields) { + if (fip->field_type == TIFF_ANY) /* wildcard */ + break; + fip = tif->tif_fieldinfo[++fix]; + if (fix >= tif->tif_nfields || + fip->field_tag != dp->tdir_tag) { + TIFFWarningExt(tif->tif_clientdata, module, + "%s: wrong data type %d for \"%s\"; tag ignored", + tif->tif_name, dp->tdir_type, + tif->tif_fieldinfo[fix-1]->field_name); + goto ignore; + } + } + /* + * Check count if known in advance. + */ + if (fip->field_readcount != TIFF_VARIABLE + && fip->field_readcount != TIFF_VARIABLE2) { + uint32 expected = (fip->field_readcount == TIFF_SPP) ? + (uint32) td->td_samplesperpixel : + (uint32) fip->field_readcount; + if (!CheckDirCount(tif, dp, expected)) + goto ignore; + } + + /* + * EXIF tags which need to be specifically processed. + */ + switch (dp->tdir_tag) { + case EXIFTAG_SUBJECTDISTANCE: + (void) TIFFFetchSubjectDistance(tif, dp); + break; + default: + (void) TIFFFetchNormalTag(tif, dp); + break; + } + } + + if (dir) + _TIFFfree(dir); + return 1; +} + +/* + * EXIF is important special case of custom IFD, so we have a special + * function to read it. + */ +int +TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff) +{ + size_t exifFieldInfoCount; + const TIFFFieldInfo *exifFieldInfo = + _TIFFGetExifFieldInfo(&exifFieldInfoCount); + return TIFFReadCustomDirectory(tif, diroff, exifFieldInfo, + exifFieldInfoCount); +} + +static int +EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) +{ + static const char module[] = "EstimateStripByteCounts"; + + TIFFDirEntry *dp; + TIFFDirectory *td = &tif->tif_dir; + uint32 strip; + + if (td->td_stripbytecount) + _TIFFfree(td->td_stripbytecount); + td->td_stripbytecount = (uint32*) + _TIFFCheckMalloc(tif, td->td_nstrips, sizeof (uint32), + "for \"StripByteCounts\" array"); + if( td->td_stripbytecount == NULL ) + return -1; + + if (td->td_compression != COMPRESSION_NONE) { + uint32 space = (uint32)(sizeof (TIFFHeader) + + sizeof (uint16) + + (dircount * sizeof (TIFFDirEntry)) + + sizeof (uint32)); + toff_t filesize = TIFFGetFileSize(tif); + uint16 n; + + /* calculate amount of space used by indirect values */ + for (dp = dir, n = dircount; n > 0; n--, dp++) + { + uint32 cc = TIFFDataWidth((TIFFDataType) dp->tdir_type); + if (cc == 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Cannot determine size of unknown tag type %d", + tif->tif_name, dp->tdir_type); + return -1; + } + cc = cc * dp->tdir_count; + if (cc > sizeof (uint32)) + space += cc; + } + space = filesize - space; + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) + space /= td->td_samplesperpixel; + for (strip = 0; strip < td->td_nstrips; strip++) + td->td_stripbytecount[strip] = space; + /* + * This gross hack handles the case were the offset to + * the last strip is past the place where we think the strip + * should begin. Since a strip of data must be contiguous, + * it's safe to assume that we've overestimated the amount + * of data in the strip and trim this number back accordingly. + */ + strip--; + if (((toff_t)(td->td_stripoffset[strip]+ + td->td_stripbytecount[strip])) > filesize) + td->td_stripbytecount[strip] = + filesize - td->td_stripoffset[strip]; + } else if (isTiled(tif)) { + uint32 bytespertile = TIFFTileSize(tif); + + for (strip = 0; strip < td->td_nstrips; strip++) + td->td_stripbytecount[strip] = bytespertile; + } else { + uint32 rowbytes = TIFFScanlineSize(tif); + uint32 rowsperstrip = td->td_imagelength/td->td_stripsperimage; + for (strip = 0; strip < td->td_nstrips; strip++) + td->td_stripbytecount[strip] = rowbytes * rowsperstrip; + } + TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); + if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) + td->td_rowsperstrip = td->td_imagelength; + return 1; +} + +static void +MissingRequired(TIFF* tif, const char* tagname) +{ + static const char module[] = "MissingRequired"; + + TIFFErrorExt(tif->tif_clientdata, module, + "%s: TIFF directory is missing required \"%s\" field", + tif->tif_name, tagname); +} + +/* + * Check the directory offset against the list of already seen directory + * offsets. This is a trick to prevent IFD looping. The one can create TIFF + * file with looped directory pointers. We will maintain a list of already + * seen directories and check every IFD offset against that list. + */ +static int +TIFFCheckDirOffset(TIFF* tif, toff_t diroff) +{ + uint16 n; + + if (diroff == 0) /* no more directories */ + return 0; + + for (n = 0; n < tif->tif_dirnumber && tif->tif_dirlist; n++) { + if (tif->tif_dirlist[n] == diroff) + return 0; + } + + tif->tif_dirnumber++; + + if (tif->tif_dirnumber > tif->tif_dirlistsize) { + toff_t* new_dirlist; + + /* + * XXX: Reduce memory allocation granularity of the dirlist + * array. + */ + new_dirlist = (toff_t *)_TIFFCheckRealloc(tif, + tif->tif_dirlist, + tif->tif_dirnumber, + 2 * sizeof(toff_t), + "for IFD list"); + if (!new_dirlist) + return 0; + tif->tif_dirlistsize = 2 * tif->tif_dirnumber; + tif->tif_dirlist = new_dirlist; + } + + tif->tif_dirlist[tif->tif_dirnumber - 1] = diroff; + + return 1; +} + +/* + * Check the count field of a directory entry against a known value. The + * caller is expected to skip/ignore the tag if there is a mismatch. + */ +static int +CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count) +{ + if (count > dir->tdir_count) { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "incorrect count for field \"%s\" (%u, expecting %u); tag ignored", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, + dir->tdir_count, count); + return (0); + } else if (count < dir->tdir_count) { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "incorrect count for field \"%s\" (%u, expecting %u); tag trimmed", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, + dir->tdir_count, count); + return (1); + } + return (1); +} + +/* + * Read IFD structure from the specified offset. If the pointer to + * nextdiroff variable has been specified, read it too. Function returns a + * number of fields in the directory or 0 if failed. + */ +static uint16 +TIFFFetchDirectory(TIFF* tif, toff_t diroff, TIFFDirEntry **pdir, + toff_t *nextdiroff) +{ + static const char module[] = "TIFFFetchDirectory"; + + TIFFDirEntry *dir; + uint16 dircount; + + assert(pdir); + + tif->tif_diroff = diroff; + if (nextdiroff) + *nextdiroff = 0; + if (!isMapped(tif)) { + if (!SeekOK(tif, tif->tif_diroff)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Seek error accessing TIFF directory", + tif->tif_name); + return 0; + } + if (!ReadOK(tif, &dircount, sizeof (uint16))) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Can not read TIFF directory count", + tif->tif_name); + return 0; + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, + sizeof (TIFFDirEntry), + "to read TIFF directory"); + if (dir == NULL) + return 0; + if (!ReadOK(tif, dir, dircount*sizeof (TIFFDirEntry))) { + TIFFErrorExt(tif->tif_clientdata, module, + "%.100s: Can not read TIFF directory", + tif->tif_name); + _TIFFfree(dir); + return 0; + } + /* + * Read offset to next directory for sequential scans if + * needed. + */ + if (nextdiroff) + (void) ReadOK(tif, nextdiroff, sizeof(uint32)); + } else { + toff_t off = tif->tif_diroff; + + /* + * Check for integer overflow when validating the dir_off, + * otherwise a very high offset may cause an OOB read and + * crash the client. Make two comparisons instead of + * + * off + sizeof(uint16) > tif->tif_size + * + * to avoid overflow. + */ + if (tif->tif_size < sizeof (uint16) || + off > tif->tif_size - sizeof(uint16)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Can not read TIFF directory count", + tif->tif_name); + return 0; + } else { + _TIFFmemcpy(&dircount, tif->tif_base + off, + sizeof(uint16)); + } + off += sizeof (uint16); + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + dir = (TIFFDirEntry *)_TIFFCheckMalloc(tif, dircount, + sizeof(TIFFDirEntry), + "to read TIFF directory"); + if (dir == NULL) + return 0; + if (off + dircount * sizeof (TIFFDirEntry) > tif->tif_size) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Can not read TIFF directory", + tif->tif_name); + _TIFFfree(dir); + return 0; + } else { + _TIFFmemcpy(dir, tif->tif_base + off, + dircount * sizeof(TIFFDirEntry)); + } + if (nextdiroff) { + off += dircount * sizeof (TIFFDirEntry); + if (off + sizeof (uint32) <= tif->tif_size) { + _TIFFmemcpy(nextdiroff, tif->tif_base + off, + sizeof (uint32)); + } + } + } + if (nextdiroff && tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(nextdiroff); + *pdir = dir; + return dircount; +} + +/* + * Fetch a contiguous directory item. + */ +static tsize_t +TIFFFetchData(TIFF* tif, TIFFDirEntry* dir, char* cp) +{ + uint32 w = TIFFDataWidth((TIFFDataType) dir->tdir_type); + /* + * FIXME: butecount should have tsize_t type, but for now libtiff + * defines tsize_t as a signed 32-bit integer and we are losing + * ability to read arrays larger than 2^31 bytes. So we are using + * uint32 instead of tsize_t here. + */ + uint32 cc = dir->tdir_count * w; + + /* Check for overflow. */ + if (!dir->tdir_count || !w || cc / w != dir->tdir_count) + goto bad; + + if (!isMapped(tif)) { + if (!SeekOK(tif, dir->tdir_offset)) + goto bad; + if (!ReadOK(tif, cp, cc)) + goto bad; + } else { + /* Check for overflow. */ + if (dir->tdir_offset + cc < dir->tdir_offset + || dir->tdir_offset + cc < cc + || dir->tdir_offset + cc > tif->tif_size) + goto bad; + _TIFFmemcpy(cp, tif->tif_base + dir->tdir_offset, cc); + } + if (tif->tif_flags & TIFF_SWAB) { + switch (dir->tdir_type) { + case TIFF_SHORT: + case TIFF_SSHORT: + TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count); + break; + case TIFF_LONG: + case TIFF_SLONG: + case TIFF_FLOAT: + TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count); + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count); + break; + case TIFF_DOUBLE: + TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count); + break; + } + } + return (cc); +bad: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error fetching data for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + return (tsize_t) 0; +} + +/* + * Fetch an ASCII item from the file. + */ +static tsize_t +TIFFFetchString(TIFF* tif, TIFFDirEntry* dir, char* cp) +{ + if (dir->tdir_count <= 4) { + uint32 l = dir->tdir_offset; + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(&l); + _TIFFmemcpy(cp, &l, dir->tdir_count); + return (1); + } + return (TIFFFetchData(tif, dir, cp)); +} + +/* + * Convert numerator+denominator to float. + */ +static int +cvtRational(TIFF* tif, TIFFDirEntry* dir, uint32 num, uint32 denom, float* rv) +{ + if (denom == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%s: Rational with zero denominator (num = %u)", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, num); + return (0); + } else { + if (dir->tdir_type == TIFF_RATIONAL) + *rv = ((float)num / (float)denom); + else + *rv = ((float)(int32)num / (float)(int32)denom); + return (1); + } +} + +/* + * Fetch a rational item from the file at offset off and return the value as a + * floating point number. + */ +static float +TIFFFetchRational(TIFF* tif, TIFFDirEntry* dir) +{ + uint32 l[2]; + float v; + + return (!TIFFFetchData(tif, dir, (char *)l) || + !cvtRational(tif, dir, l[0], l[1], &v) ? 1.0f : v); +} + +/* + * Fetch a single floating point value from the offset field and return it as + * a native float. + */ +static float +TIFFFetchFloat(TIFF* tif, TIFFDirEntry* dir) +{ + float v; + int32 l = TIFFExtractData(tif, dir->tdir_type, dir->tdir_offset); + _TIFFmemcpy(&v, &l, sizeof(float)); + TIFFCvtIEEEFloatToNative(tif, 1, &v); + return (v); +} + +/* + * Fetch an array of BYTE or SBYTE values. + */ +static int +TIFFFetchByteArray(TIFF* tif, TIFFDirEntry* dir, uint8* v) +{ + if (dir->tdir_count <= 4) { + /* + * Extract data from offset field. + */ + if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { + if (dir->tdir_type == TIFF_SBYTE) + switch (dir->tdir_count) { + case 4: v[3] = dir->tdir_offset & 0xff; + case 3: v[2] = (dir->tdir_offset >> 8) & 0xff; + case 2: v[1] = (dir->tdir_offset >> 16) & 0xff; + case 1: v[0] = dir->tdir_offset >> 24; + } + else + switch (dir->tdir_count) { + case 4: v[3] = dir->tdir_offset & 0xff; + case 3: v[2] = (dir->tdir_offset >> 8) & 0xff; + case 2: v[1] = (dir->tdir_offset >> 16) & 0xff; + case 1: v[0] = dir->tdir_offset >> 24; + } + } else { + if (dir->tdir_type == TIFF_SBYTE) + switch (dir->tdir_count) { + case 4: v[3] = dir->tdir_offset >> 24; + case 3: v[2] = (dir->tdir_offset >> 16) & 0xff; + case 2: v[1] = (dir->tdir_offset >> 8) & 0xff; + case 1: v[0] = dir->tdir_offset & 0xff; + } + else + switch (dir->tdir_count) { + case 4: v[3] = dir->tdir_offset >> 24; + case 3: v[2] = (dir->tdir_offset >> 16) & 0xff; + case 2: v[1] = (dir->tdir_offset >> 8) & 0xff; + case 1: v[0] = dir->tdir_offset & 0xff; + } + } + return (1); + } else + return (TIFFFetchData(tif, dir, (char*) v) != 0); /* XXX */ +} + +/* + * Fetch an array of SHORT or SSHORT values. + */ +static int +TIFFFetchShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v) +{ + if (dir->tdir_count <= 2) { + if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { + switch (dir->tdir_count) { + case 2: v[1] = (uint16) (dir->tdir_offset & 0xffff); + case 1: v[0] = (uint16) (dir->tdir_offset >> 16); + } + } else { + switch (dir->tdir_count) { + case 2: v[1] = (uint16) (dir->tdir_offset >> 16); + case 1: v[0] = (uint16) (dir->tdir_offset & 0xffff); + } + } + return (1); + } else + return (TIFFFetchData(tif, dir, (char *)v) != 0); +} + +/* + * Fetch a pair of SHORT or BYTE values. Some tags may have either BYTE + * or SHORT type and this function works with both ones. + */ +static int +TIFFFetchShortPair(TIFF* tif, TIFFDirEntry* dir) +{ + /* + * Prevent overflowing the v stack arrays below by performing a sanity + * check on tdir_count, this should never be greater than two. + */ + if (dir->tdir_count > 2) { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "unexpected count for field \"%s\", %u, expected 2; ignored", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, + dir->tdir_count); + return 0; + } + + switch (dir->tdir_type) { + case TIFF_BYTE: + case TIFF_SBYTE: + { + uint8 v[4]; + return TIFFFetchByteArray(tif, dir, v) + && TIFFSetField(tif, dir->tdir_tag, v[0], v[1]); + } + case TIFF_SHORT: + case TIFF_SSHORT: + { + uint16 v[2]; + return TIFFFetchShortArray(tif, dir, v) + && TIFFSetField(tif, dir->tdir_tag, v[0], v[1]); + } + default: + return 0; + } +} + +/* + * Fetch an array of LONG or SLONG values. + */ +static int +TIFFFetchLongArray(TIFF* tif, TIFFDirEntry* dir, uint32* v) +{ + if (dir->tdir_count == 1) { + v[0] = dir->tdir_offset; + return (1); + } else + return (TIFFFetchData(tif, dir, (char*) v) != 0); +} + +/* + * Fetch an array of RATIONAL or SRATIONAL values. + */ +static int +TIFFFetchRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v) +{ + int ok = 0; + uint32* l; + + l = (uint32*)_TIFFCheckMalloc(tif, + dir->tdir_count, TIFFDataWidth((TIFFDataType) dir->tdir_type), + "to fetch array of rationals"); + if (l) { + if (TIFFFetchData(tif, dir, (char *)l)) { + uint32 i; + for (i = 0; i < dir->tdir_count; i++) { + ok = cvtRational(tif, dir, + l[2*i+0], l[2*i+1], &v[i]); + if (!ok) + break; + } + } + _TIFFfree((char *)l); + } + return (ok); +} + +/* + * Fetch an array of FLOAT values. + */ +static int +TIFFFetchFloatArray(TIFF* tif, TIFFDirEntry* dir, float* v) +{ + + if (dir->tdir_count == 1) { + union + { + float f; + uint32 i; + } float_union; + + float_union.i=dir->tdir_offset; + v[0]=float_union.f; + TIFFCvtIEEEFloatToNative(tif, dir->tdir_count, v); + return (1); + } else if (TIFFFetchData(tif, dir, (char*) v)) { + TIFFCvtIEEEFloatToNative(tif, dir->tdir_count, v); + return (1); + } else + return (0); +} + +/* + * Fetch an array of DOUBLE values. + */ +static int +TIFFFetchDoubleArray(TIFF* tif, TIFFDirEntry* dir, double* v) +{ + if (TIFFFetchData(tif, dir, (char*) v)) { + TIFFCvtIEEEDoubleToNative(tif, dir->tdir_count, v); + return (1); + } else + return (0); +} + +/* + * Fetch an array of ANY values. The actual values are returned as doubles + * which should be able hold all the types. Yes, there really should be an + * tany_t to avoid this potential non-portability ... Note in particular that + * we assume that the double return value vector is large enough to read in + * any fundamental type. We use that vector as a buffer to read in the base + * type vector and then convert it in place to double (from end to front of + * course). + */ +static int +TIFFFetchAnyArray(TIFF* tif, TIFFDirEntry* dir, double* v) +{ + int i; + + switch (dir->tdir_type) { + case TIFF_BYTE: + case TIFF_SBYTE: + if (!TIFFFetchByteArray(tif, dir, (uint8*) v)) + return (0); + if (dir->tdir_type == TIFF_BYTE) { + uint8* vp = (uint8*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } else { + int8* vp = (int8*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } + break; + case TIFF_SHORT: + case TIFF_SSHORT: + if (!TIFFFetchShortArray(tif, dir, (uint16*) v)) + return (0); + if (dir->tdir_type == TIFF_SHORT) { + uint16* vp = (uint16*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } else { + int16* vp = (int16*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } + break; + case TIFF_LONG: + case TIFF_SLONG: + if (!TIFFFetchLongArray(tif, dir, (uint32*) v)) + return (0); + if (dir->tdir_type == TIFF_LONG) { + uint32* vp = (uint32*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } else { + int32* vp = (int32*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + if (!TIFFFetchRationalArray(tif, dir, (float*) v)) + return (0); + { float* vp = (float*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } + break; + case TIFF_FLOAT: + if (!TIFFFetchFloatArray(tif, dir, (float*) v)) + return (0); + { float* vp = (float*) v; + for (i = dir->tdir_count-1; i >= 0; i--) + v[i] = vp[i]; + } + break; + case TIFF_DOUBLE: + return (TIFFFetchDoubleArray(tif, dir, (double*) v)); + default: + /* TIFF_NOTYPE */ + /* TIFF_ASCII */ + /* TIFF_UNDEFINED */ + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "cannot read TIFF_ANY type %d for field \"%s\"", + dir->tdir_type, + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + return (0); + } + return (1); +} + +/* + * Fetch a tag that is not handled by special case code. + */ +static int +TIFFFetchNormalTag(TIFF* tif, TIFFDirEntry* dp) +{ + static const char mesg[] = "to fetch tag value"; + int ok = 0; + const TIFFFieldInfo* fip = _TIFFFieldWithTag(tif, dp->tdir_tag); + + if (dp->tdir_count > 1) { /* array of values */ + char* cp = NULL; + + switch (dp->tdir_type) { + case TIFF_BYTE: + case TIFF_SBYTE: + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, sizeof (uint8), mesg); + ok = cp && TIFFFetchByteArray(tif, dp, (uint8*) cp); + break; + case TIFF_SHORT: + case TIFF_SSHORT: + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, sizeof (uint16), mesg); + ok = cp && TIFFFetchShortArray(tif, dp, (uint16*) cp); + break; + case TIFF_LONG: + case TIFF_SLONG: + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, sizeof (uint32), mesg); + ok = cp && TIFFFetchLongArray(tif, dp, (uint32*) cp); + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, sizeof (float), mesg); + ok = cp && TIFFFetchRationalArray(tif, dp, (float*) cp); + break; + case TIFF_FLOAT: + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, sizeof (float), mesg); + ok = cp && TIFFFetchFloatArray(tif, dp, (float*) cp); + break; + case TIFF_DOUBLE: + cp = (char *)_TIFFCheckMalloc(tif, + dp->tdir_count, sizeof (double), mesg); + ok = cp && TIFFFetchDoubleArray(tif, dp, (double*) cp); + break; + case TIFF_ASCII: + case TIFF_UNDEFINED: /* bit of a cheat... */ + /* + * Some vendors write strings w/o the trailing + * NULL byte, so always append one just in case. + */ + cp = (char *)_TIFFCheckMalloc(tif, dp->tdir_count + 1, + 1, mesg); + if( (ok = (cp && TIFFFetchString(tif, dp, cp))) != 0 ) + cp[dp->tdir_count] = '\0'; /* XXX */ + break; + } + if (ok) { + ok = (fip->field_passcount ? + TIFFSetField(tif, dp->tdir_tag, dp->tdir_count, cp) + : TIFFSetField(tif, dp->tdir_tag, cp)); + } + if (cp != NULL) + _TIFFfree(cp); + } else if (CheckDirCount(tif, dp, 1)) { /* singleton value */ + switch (dp->tdir_type) { + case TIFF_BYTE: + case TIFF_SBYTE: + case TIFF_SHORT: + case TIFF_SSHORT: + /* + * If the tag is also acceptable as a LONG or SLONG + * then TIFFSetField will expect an uint32 parameter + * passed to it (through varargs). Thus, for machines + * where sizeof (int) != sizeof (uint32) we must do + * a careful check here. It's hard to say if this + * is worth optimizing. + * + * NB: We use TIFFFieldWithTag here knowing that + * it returns us the first entry in the table + * for the tag and that that entry is for the + * widest potential data type the tag may have. + */ + { TIFFDataType type = fip->field_type; + if (type != TIFF_LONG && type != TIFF_SLONG) { + uint16 v = (uint16) + TIFFExtractData(tif, dp->tdir_type, dp->tdir_offset); + ok = (fip->field_passcount ? + TIFFSetField(tif, dp->tdir_tag, 1, &v) + : TIFFSetField(tif, dp->tdir_tag, v)); + break; + } + } + /* fall thru... */ + case TIFF_LONG: + case TIFF_SLONG: + { uint32 v32 = + TIFFExtractData(tif, dp->tdir_type, dp->tdir_offset); + ok = (fip->field_passcount ? + TIFFSetField(tif, dp->tdir_tag, 1, &v32) + : TIFFSetField(tif, dp->tdir_tag, v32)); + } + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + case TIFF_FLOAT: + { float v = (dp->tdir_type == TIFF_FLOAT ? + TIFFFetchFloat(tif, dp) + : TIFFFetchRational(tif, dp)); + ok = (fip->field_passcount ? + TIFFSetField(tif, dp->tdir_tag, 1, &v) + : TIFFSetField(tif, dp->tdir_tag, v)); + } + break; + case TIFF_DOUBLE: + { double v; + ok = (TIFFFetchDoubleArray(tif, dp, &v) && + (fip->field_passcount ? + TIFFSetField(tif, dp->tdir_tag, 1, &v) + : TIFFSetField(tif, dp->tdir_tag, v)) + ); + } + break; + case TIFF_ASCII: + case TIFF_UNDEFINED: /* bit of a cheat... */ + { char c[2]; + if( (ok = (TIFFFetchString(tif, dp, c) != 0)) != 0 ) { + c[1] = '\0'; /* XXX paranoid */ + ok = (fip->field_passcount ? + TIFFSetField(tif, dp->tdir_tag, 1, c) + : TIFFSetField(tif, dp->tdir_tag, c)); + } + } + break; + } + } + return (ok); +} + +#define NITEMS(x) (sizeof (x) / sizeof (x[0])) +/* + * Fetch samples/pixel short values for + * the specified tag and verify that + * all values are the same. + */ +static int +TIFFFetchPerSampleShorts(TIFF* tif, TIFFDirEntry* dir, uint16* pl) +{ + uint16 samples = tif->tif_dir.td_samplesperpixel; + int status = 0; + + if (CheckDirCount(tif, dir, (uint32) samples)) { + uint16 buf[10]; + uint16* v = buf; + + if (dir->tdir_count > NITEMS(buf)) + v = (uint16*) _TIFFCheckMalloc(tif, dir->tdir_count, sizeof(uint16), + "to fetch per-sample values"); + if (v && TIFFFetchShortArray(tif, dir, v)) { + uint16 i; + int check_count = dir->tdir_count; + if( samples < check_count ) + check_count = samples; + + for (i = 1; i < check_count; i++) + if (v[i] != v[0]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot handle different per-sample values for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + goto bad; + } + *pl = v[0]; + status = 1; + } + bad: + if (v && v != buf) + _TIFFfree(v); + } + return (status); +} + +/* + * Fetch samples/pixel long values for + * the specified tag and verify that + * all values are the same. + */ +static int +TIFFFetchPerSampleLongs(TIFF* tif, TIFFDirEntry* dir, uint32* pl) +{ + uint16 samples = tif->tif_dir.td_samplesperpixel; + int status = 0; + + if (CheckDirCount(tif, dir, (uint32) samples)) { + uint32 buf[10]; + uint32* v = buf; + + if (dir->tdir_count > NITEMS(buf)) + v = (uint32*) _TIFFCheckMalloc(tif, dir->tdir_count, sizeof(uint32), + "to fetch per-sample values"); + if (v && TIFFFetchLongArray(tif, dir, v)) { + uint16 i; + int check_count = dir->tdir_count; + + if( samples < check_count ) + check_count = samples; + for (i = 1; i < check_count; i++) + if (v[i] != v[0]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot handle different per-sample values for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + goto bad; + } + *pl = v[0]; + status = 1; + } + bad: + if (v && v != buf) + _TIFFfree(v); + } + return (status); +} + +/* + * Fetch samples/pixel ANY values for the specified tag and verify that all + * values are the same. + */ +static int +TIFFFetchPerSampleAnys(TIFF* tif, TIFFDirEntry* dir, double* pl) +{ + uint16 samples = tif->tif_dir.td_samplesperpixel; + int status = 0; + + if (CheckDirCount(tif, dir, (uint32) samples)) { + double buf[10]; + double* v = buf; + + if (dir->tdir_count > NITEMS(buf)) + v = (double*) _TIFFCheckMalloc(tif, dir->tdir_count, sizeof (double), + "to fetch per-sample values"); + if (v && TIFFFetchAnyArray(tif, dir, v)) { + uint16 i; + int check_count = dir->tdir_count; + if( samples < check_count ) + check_count = samples; + + for (i = 1; i < check_count; i++) + if (v[i] != v[0]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot handle different per-sample values for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + goto bad; + } + *pl = v[0]; + status = 1; + } + bad: + if (v && v != buf) + _TIFFfree(v); + } + return (status); +} +#undef NITEMS + +/* + * Fetch a set of offsets or lengths. + * While this routine says "strips", in fact it's also used for tiles. + */ +static int +TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, long nstrips, uint32** lpp) +{ + register uint32* lp; + int status; + + CheckDirCount(tif, dir, (uint32) nstrips); + + /* + * Allocate space for strip information. + */ + if (*lpp == NULL && + (*lpp = (uint32 *)_TIFFCheckMalloc(tif, + nstrips, sizeof (uint32), "for strip array")) == NULL) + return (0); + lp = *lpp; + _TIFFmemset( lp, 0, sizeof(uint32) * nstrips ); + + if (dir->tdir_type == (int)TIFF_SHORT) { + /* + * Handle uint16->uint32 expansion. + */ + uint16* dp = (uint16*) _TIFFCheckMalloc(tif, + dir->tdir_count, sizeof (uint16), "to fetch strip tag"); + if (dp == NULL) + return (0); + if( (status = TIFFFetchShortArray(tif, dir, dp)) != 0 ) { + int i; + + for( i = 0; i < nstrips && i < (int) dir->tdir_count; i++ ) + { + lp[i] = dp[i]; + } + } + _TIFFfree((char*) dp); + + } else if( nstrips != (int) dir->tdir_count ) { + /* Special case to correct length */ + + uint32* dp = (uint32*) _TIFFCheckMalloc(tif, + dir->tdir_count, sizeof (uint32), "to fetch strip tag"); + if (dp == NULL) + return (0); + + status = TIFFFetchLongArray(tif, dir, dp); + if( status != 0 ) { + int i; + + for( i = 0; i < nstrips && i < (int) dir->tdir_count; i++ ) + { + lp[i] = dp[i]; + } + } + + _TIFFfree( (char *) dp ); + } else + status = TIFFFetchLongArray(tif, dir, lp); + + return (status); +} + +/* + * Fetch and set the RefBlackWhite tag. + */ +static int +TIFFFetchRefBlackWhite(TIFF* tif, TIFFDirEntry* dir) +{ + static const char mesg[] = "for \"ReferenceBlackWhite\" array"; + char* cp; + int ok; + + if (dir->tdir_type == TIFF_RATIONAL) + return (TIFFFetchNormalTag(tif, dir)); + /* + * Handle LONG's for backward compatibility. + */ + cp = (char *)_TIFFCheckMalloc(tif, dir->tdir_count, + sizeof (uint32), mesg); + if( (ok = (cp && TIFFFetchLongArray(tif, dir, (uint32*) cp))) != 0) { + float* fp = (float*) + _TIFFCheckMalloc(tif, dir->tdir_count, sizeof (float), mesg); + if( (ok = (fp != NULL)) != 0 ) { + uint32 i; + for (i = 0; i < dir->tdir_count; i++) + fp[i] = (float)((uint32*) cp)[i]; + ok = TIFFSetField(tif, dir->tdir_tag, fp); + _TIFFfree((char*) fp); + } + } + if (cp) + _TIFFfree(cp); + return (ok); +} + +/* + * Fetch and set the SubjectDistance EXIF tag. + */ +static int +TIFFFetchSubjectDistance(TIFF* tif, TIFFDirEntry* dir) +{ + uint32 l[2]; + float v; + int ok = 0; + + if( dir->tdir_count != 1 || dir->tdir_type != TIFF_RATIONAL ) + { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "incorrect count or type for SubjectDistance, tag ignored" ); + return (0); + } + + if (TIFFFetchData(tif, dir, (char *)l) + && cvtRational(tif, dir, l[0], l[1], &v)) { + /* + * XXX: Numerator 0xFFFFFFFF means that we have infinite + * distance. Indicate that with a negative floating point + * SubjectDistance value. + */ + ok = TIFFSetField(tif, dir->tdir_tag, + (l[0] != 0xFFFFFFFF) ? v : -v); + } + + return ok; +} + +/* + * Replace a single strip (tile) of uncompressed data by multiple strips + * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for + * dealing with large images or for dealing with machines with a limited + * amount memory. + */ +static void +ChopUpSingleUncompressedStrip(TIFF* tif) +{ + register TIFFDirectory *td = &tif->tif_dir; + uint32 bytecount = td->td_stripbytecount[0]; + uint32 offset = td->td_stripoffset[0]; + tsize_t rowbytes = TIFFVTileSize(tif, 1), stripbytes; + tstrip_t strip, nstrips, rowsperstrip; + uint32* newcounts; + uint32* newoffsets; + + /* + * Make the rows hold at least one scanline, but fill specified amount + * of data if possible. + */ + if (rowbytes > STRIP_SIZE_DEFAULT) { + stripbytes = rowbytes; + rowsperstrip = 1; + } else if (rowbytes > 0 ) { + rowsperstrip = STRIP_SIZE_DEFAULT / rowbytes; + stripbytes = rowbytes * rowsperstrip; + } + else + return; + + /* + * never increase the number of strips in an image + */ + if (rowsperstrip >= td->td_rowsperstrip) + return; + nstrips = (tstrip_t) TIFFhowmany(bytecount, stripbytes); + if( nstrips == 0 ) /* something is wonky, do nothing. */ + return; + + newcounts = (uint32*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint32), + "for chopped \"StripByteCounts\" array"); + newoffsets = (uint32*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint32), + "for chopped \"StripOffsets\" array"); + if (newcounts == NULL || newoffsets == NULL) { + /* + * Unable to allocate new strip information, give up and use + * the original one strip information. + */ + if (newcounts != NULL) + _TIFFfree(newcounts); + if (newoffsets != NULL) + _TIFFfree(newoffsets); + return; + } + /* + * Fill the strip information arrays with new bytecounts and offsets + * that reflect the broken-up format. + */ + for (strip = 0; strip < nstrips; strip++) { + if ((uint32)stripbytes > bytecount) + stripbytes = bytecount; + newcounts[strip] = stripbytes; + newoffsets[strip] = offset; + offset += stripbytes; + bytecount -= stripbytes; + } + /* + * Replace old single strip info with multi-strip info. + */ + td->td_stripsperimage = td->td_nstrips = nstrips; + TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); + + _TIFFfree(td->td_stripbytecount); + _TIFFfree(td->td_stripoffset); + td->td_stripbytecount = newcounts; + td->td_stripoffset = newoffsets; + td->td_stripbytecountsorted = 1; +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_dirwrite.c b/tiff/libtiff/tif_dirwrite.c new file mode 100644 index 0000000..8d308c4 --- /dev/null +++ b/tiff/libtiff/tif_dirwrite.c @@ -0,0 +1,1414 @@ +/* $Id: tif_dirwrite.c,v 1.37.2.7 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Directory Write Support Routines. + */ +#include "tiffiop.h" + +#ifdef HAVE_IEEEFP +# define TIFFCvtNativeToIEEEFloat(tif, n, fp) +# define TIFFCvtNativeToIEEEDouble(tif, n, dp) +#else +extern void TIFFCvtNativeToIEEEFloat(TIFF*, uint32, float*); +extern void TIFFCvtNativeToIEEEDouble(TIFF*, uint32, double*); +#endif + +static int TIFFWriteNormalTag(TIFF*, TIFFDirEntry*, const TIFFFieldInfo*); +static void TIFFSetupShortLong(TIFF*, ttag_t, TIFFDirEntry*, uint32); +static void TIFFSetupShort(TIFF*, ttag_t, TIFFDirEntry*, uint16); +static int TIFFSetupShortPair(TIFF*, ttag_t, TIFFDirEntry*); +static int TIFFWritePerSampleShorts(TIFF*, ttag_t, TIFFDirEntry*); +static int TIFFWritePerSampleAnys(TIFF*, TIFFDataType, ttag_t, TIFFDirEntry*); +static int TIFFWriteShortTable(TIFF*, ttag_t, TIFFDirEntry*, uint32, uint16**); +static int TIFFWriteShortArray(TIFF*, TIFFDirEntry*, uint16*); +static int TIFFWriteLongArray(TIFF *, TIFFDirEntry*, uint32*); +static int TIFFWriteRationalArray(TIFF *, TIFFDirEntry*, float*); +static int TIFFWriteFloatArray(TIFF *, TIFFDirEntry*, float*); +static int TIFFWriteDoubleArray(TIFF *, TIFFDirEntry*, double*); +static int TIFFWriteByteArray(TIFF*, TIFFDirEntry*, char*); +static int TIFFWriteAnyArray(TIFF*, + TIFFDataType, ttag_t, TIFFDirEntry*, uint32, double*); +static int TIFFWriteTransferFunction(TIFF*, TIFFDirEntry*); +static int TIFFWriteInkNames(TIFF*, TIFFDirEntry*); +static int TIFFWriteData(TIFF*, TIFFDirEntry*, char*); +static int TIFFLinkDirectory(TIFF*); + +#define WriteRationalPair(type, tag1, v1, tag2, v2) { \ + TIFFWriteRational((tif), (type), (tag1), (dir), (v1)) \ + TIFFWriteRational((tif), (type), (tag2), (dir)+1, (v2)) \ + (dir)++; \ +} +#define TIFFWriteRational(tif, type, tag, dir, v) \ + (dir)->tdir_tag = (tag); \ + (dir)->tdir_type = (type); \ + (dir)->tdir_count = 1; \ + if (!TIFFWriteRationalArray((tif), (dir), &(v))) \ + goto bad; + +/* + * Write the contents of the current directory + * to the specified file. This routine doesn't + * handle overwriting a directory with auxiliary + * storage that's been changed. + */ +static int +_TIFFWriteDirectory(TIFF* tif, int done) +{ + uint16 dircount; + toff_t diroff; + ttag_t tag; + uint32 nfields; + tsize_t dirsize; + char* data; + TIFFDirEntry* dir; + TIFFDirectory* td; + unsigned long b, fields[FIELD_SETLONGS]; + int fi, nfi; + + if (tif->tif_mode == O_RDONLY) + return (1); + /* + * Clear write state so that subsequent images with + * different characteristics get the right buffers + * setup for them. + */ + if (done) + { + if (tif->tif_flags & TIFF_POSTENCODE) { + tif->tif_flags &= ~TIFF_POSTENCODE; + if (!(*tif->tif_postencode)(tif)) { + TIFFErrorExt(tif->tif_clientdata, + tif->tif_name, + "Error post-encoding before directory write"); + return (0); + } + } + (*tif->tif_close)(tif); /* shutdown encoder */ + /* + * Flush any data that might have been written + * by the compression close+cleanup routines. + */ + if (tif->tif_rawcc > 0 + && (tif->tif_flags & TIFF_BEENWRITING) != 0 + && !TIFFFlushData1(tif)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error flushing data before directory write"); + return (0); + } + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { + _TIFFfree(tif->tif_rawdata); + tif->tif_rawdata = NULL; + tif->tif_rawcc = 0; + tif->tif_rawdatasize = 0; + } + tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP); + } + + td = &tif->tif_dir; + /* + * Size the directory so that we can calculate + * offsets for the data items that aren't kept + * in-place in each field. + */ + nfields = 0; + for (b = 0; b <= FIELD_LAST; b++) + if (TIFFFieldSet(tif, b) && b != FIELD_CUSTOM) + nfields += (b < FIELD_SUBFILETYPE ? 2 : 1); + nfields += td->td_customValueCount; + dirsize = nfields * sizeof (TIFFDirEntry); + data = (char*) _TIFFmalloc(dirsize); + if (data == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot write directory, out of space"); + return (0); + } + /* + * Directory hasn't been placed yet, put + * it at the end of the file and link it + * into the existing directory structure. + */ + if (tif->tif_diroff == 0 && !TIFFLinkDirectory(tif)) + goto bad; + tif->tif_dataoff = (toff_t)( + tif->tif_diroff + sizeof (uint16) + dirsize + sizeof (toff_t)); + if (tif->tif_dataoff & 1) + tif->tif_dataoff++; + (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET); + tif->tif_curdir++; + dir = (TIFFDirEntry*) data; + /* + * Setup external form of directory + * entries and write data items. + */ + _TIFFmemcpy(fields, td->td_fieldsset, sizeof (fields)); + /* + * Write out ExtraSamples tag only if + * extra samples are present in the data. + */ + if (FieldSet(fields, FIELD_EXTRASAMPLES) && !td->td_extrasamples) { + ResetFieldBit(fields, FIELD_EXTRASAMPLES); + nfields--; + dirsize -= sizeof (TIFFDirEntry); + } /*XXX*/ + for (fi = 0, nfi = tif->tif_nfields; nfi > 0; nfi--, fi++) { + const TIFFFieldInfo* fip = tif->tif_fieldinfo[fi]; + + /* + * For custom fields, we test to see if the custom field + * is set or not. For normal fields, we just use the + * FieldSet test. + */ + if( fip->field_bit == FIELD_CUSTOM ) + { + int ci, is_set = FALSE; + + for( ci = 0; ci < td->td_customValueCount; ci++ ) + is_set |= (td->td_customValues[ci].info == fip); + + if( !is_set ) + continue; + } + else if (!FieldSet(fields, fip->field_bit)) + continue; + + /* + * Handle other fields. + */ + switch (fip->field_bit) + { + case FIELD_STRIPOFFSETS: + /* + * We use one field bit for both strip and tile + + * offsets, and so must be careful in selecting + * the appropriate field descriptor (so that tags + * are written in sorted order). + */ + tag = isTiled(tif) ? + TIFFTAG_TILEOFFSETS : TIFFTAG_STRIPOFFSETS; + if (tag != fip->field_tag) + continue; + + dir->tdir_tag = (uint16) tag; + dir->tdir_type = (uint16) TIFF_LONG; + dir->tdir_count = (uint32) td->td_nstrips; + if (!TIFFWriteLongArray(tif, dir, td->td_stripoffset)) + goto bad; + break; + case FIELD_STRIPBYTECOUNTS: + /* + * We use one field bit for both strip and tile + * byte counts, and so must be careful in selecting + * the appropriate field descriptor (so that tags + * are written in sorted order). + */ + tag = isTiled(tif) ? + TIFFTAG_TILEBYTECOUNTS : TIFFTAG_STRIPBYTECOUNTS; + if (tag != fip->field_tag) + continue; + + dir->tdir_tag = (uint16) tag; + dir->tdir_type = (uint16) TIFF_LONG; + dir->tdir_count = (uint32) td->td_nstrips; + if (!TIFFWriteLongArray(tif, dir, td->td_stripbytecount)) + goto bad; + break; + case FIELD_ROWSPERSTRIP: + TIFFSetupShortLong(tif, TIFFTAG_ROWSPERSTRIP, + dir, td->td_rowsperstrip); + break; + case FIELD_COLORMAP: + if (!TIFFWriteShortTable(tif, TIFFTAG_COLORMAP, dir, + 3, td->td_colormap)) + goto bad; + break; + case FIELD_IMAGEDIMENSIONS: + TIFFSetupShortLong(tif, TIFFTAG_IMAGEWIDTH, + dir++, td->td_imagewidth); + TIFFSetupShortLong(tif, TIFFTAG_IMAGELENGTH, + dir, td->td_imagelength); + break; + case FIELD_TILEDIMENSIONS: + TIFFSetupShortLong(tif, TIFFTAG_TILEWIDTH, + dir++, td->td_tilewidth); + TIFFSetupShortLong(tif, TIFFTAG_TILELENGTH, + dir, td->td_tilelength); + break; + case FIELD_COMPRESSION: + TIFFSetupShort(tif, TIFFTAG_COMPRESSION, + dir, td->td_compression); + break; + case FIELD_PHOTOMETRIC: + TIFFSetupShort(tif, TIFFTAG_PHOTOMETRIC, + dir, td->td_photometric); + break; + case FIELD_POSITION: + WriteRationalPair(TIFF_RATIONAL, + TIFFTAG_XPOSITION, td->td_xposition, + TIFFTAG_YPOSITION, td->td_yposition); + break; + case FIELD_RESOLUTION: + WriteRationalPair(TIFF_RATIONAL, + TIFFTAG_XRESOLUTION, td->td_xresolution, + TIFFTAG_YRESOLUTION, td->td_yresolution); + break; + case FIELD_BITSPERSAMPLE: + case FIELD_MINSAMPLEVALUE: + case FIELD_MAXSAMPLEVALUE: + case FIELD_SAMPLEFORMAT: + if (!TIFFWritePerSampleShorts(tif, fip->field_tag, dir)) + goto bad; + break; + case FIELD_SMINSAMPLEVALUE: + case FIELD_SMAXSAMPLEVALUE: + if (!TIFFWritePerSampleAnys(tif, + _TIFFSampleToTagType(tif), fip->field_tag, dir)) + goto bad; + break; + case FIELD_PAGENUMBER: + case FIELD_HALFTONEHINTS: + case FIELD_YCBCRSUBSAMPLING: + if (!TIFFSetupShortPair(tif, fip->field_tag, dir)) + goto bad; + break; + case FIELD_INKNAMES: + if (!TIFFWriteInkNames(tif, dir)) + goto bad; + break; + case FIELD_TRANSFERFUNCTION: + if (!TIFFWriteTransferFunction(tif, dir)) + goto bad; + break; + case FIELD_SUBIFD: + /* + * XXX: Always write this field using LONG type + * for backward compatibility. + */ + dir->tdir_tag = (uint16) fip->field_tag; + dir->tdir_type = (uint16) TIFF_LONG; + dir->tdir_count = (uint32) td->td_nsubifd; + if (!TIFFWriteLongArray(tif, dir, td->td_subifd)) + goto bad; + /* + * Total hack: if this directory includes a SubIFD + * tag then force the next <n> directories to be + * written as ``sub directories'' of this one. This + * is used to write things like thumbnails and + * image masks that one wants to keep out of the + * normal directory linkage access mechanism. + */ + if (dir->tdir_count > 0) { + tif->tif_flags |= TIFF_INSUBIFD; + tif->tif_nsubifd = (uint16) dir->tdir_count; + if (dir->tdir_count > 1) + tif->tif_subifdoff = dir->tdir_offset; + else + tif->tif_subifdoff = (uint32)( + tif->tif_diroff + + sizeof (uint16) + + ((char*)&dir->tdir_offset-data)); + } + break; + default: + /* XXX: Should be fixed and removed. */ + if (fip->field_tag == TIFFTAG_DOTRANGE) { + if (!TIFFSetupShortPair(tif, fip->field_tag, dir)) + goto bad; + } + else if (!TIFFWriteNormalTag(tif, dir, fip)) + goto bad; + break; + } + dir++; + + if( fip->field_bit != FIELD_CUSTOM ) + ResetFieldBit(fields, fip->field_bit); + } + + /* + * Write directory. + */ + dircount = (uint16) nfields; + diroff = (uint32) tif->tif_nextdiroff; + if (tif->tif_flags & TIFF_SWAB) { + /* + * The file's byte order is opposite to the + * native machine architecture. We overwrite + * the directory information with impunity + * because it'll be released below after we + * write it to the file. Note that all the + * other tag construction routines assume that + * we do this byte-swapping; i.e. they only + * byte-swap indirect data. + */ + for (dir = (TIFFDirEntry*) data; dircount; dir++, dircount--) { + TIFFSwabArrayOfShort(&dir->tdir_tag, 2); + TIFFSwabArrayOfLong(&dir->tdir_count, 2); + } + dircount = (uint16) nfields; + TIFFSwabShort(&dircount); + TIFFSwabLong(&diroff); + } + (void) TIFFSeekFile(tif, tif->tif_diroff, SEEK_SET); + if (!WriteOK(tif, &dircount, sizeof (dircount))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory count"); + goto bad; + } + if (!WriteOK(tif, data, dirsize)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory contents"); + goto bad; + } + if (!WriteOK(tif, &diroff, sizeof (uint32))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory link"); + goto bad; + } + if (done) { + TIFFFreeDirectory(tif); + tif->tif_flags &= ~TIFF_DIRTYDIRECT; + (*tif->tif_cleanup)(tif); + + /* + * Reset directory-related state for subsequent + * directories. + */ + TIFFCreateDirectory(tif); + } + _TIFFfree(data); + return (1); +bad: + _TIFFfree(data); + return (0); +} +#undef WriteRationalPair + +int +TIFFWriteDirectory(TIFF* tif) +{ + return _TIFFWriteDirectory(tif, TRUE); +} + +/* + * Similar to TIFFWriteDirectory(), writes the directory out + * but leaves all data structures in memory so that it can be + * written again. This will make a partially written TIFF file + * readable before it is successfully completed/closed. + */ +int +TIFFCheckpointDirectory(TIFF* tif) +{ + int rc; + /* Setup the strips arrays, if they haven't already been. */ + if (tif->tif_dir.td_stripoffset == NULL) + (void) TIFFSetupStrips(tif); + rc = _TIFFWriteDirectory(tif, FALSE); + (void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END)); + return rc; +} + +static int +_TIFFWriteCustomDirectory(TIFF* tif, toff_t *pdiroff) +{ + uint16 dircount; + uint32 nfields; + tsize_t dirsize; + char* data; + TIFFDirEntry* dir; + TIFFDirectory* td; + unsigned long b, fields[FIELD_SETLONGS]; + int fi, nfi; + + if (tif->tif_mode == O_RDONLY) + return (1); + + td = &tif->tif_dir; + /* + * Size the directory so that we can calculate + * offsets for the data items that aren't kept + * in-place in each field. + */ + nfields = 0; + for (b = 0; b <= FIELD_LAST; b++) + if (TIFFFieldSet(tif, b) && b != FIELD_CUSTOM) + nfields += (b < FIELD_SUBFILETYPE ? 2 : 1); + nfields += td->td_customValueCount; + dirsize = nfields * sizeof (TIFFDirEntry); + data = (char*) _TIFFmalloc(dirsize); + if (data == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Cannot write directory, out of space"); + return (0); + } + /* + * Put the directory at the end of the file. + */ + tif->tif_diroff = (TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1; + tif->tif_dataoff = (toff_t)( + tif->tif_diroff + sizeof (uint16) + dirsize + sizeof (toff_t)); + if (tif->tif_dataoff & 1) + tif->tif_dataoff++; + (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET); + dir = (TIFFDirEntry*) data; + /* + * Setup external form of directory + * entries and write data items. + */ + _TIFFmemcpy(fields, td->td_fieldsset, sizeof (fields)); + + for (fi = 0, nfi = tif->tif_nfields; nfi > 0; nfi--, fi++) { + const TIFFFieldInfo* fip = tif->tif_fieldinfo[fi]; + + /* + * For custom fields, we test to see if the custom field + * is set or not. For normal fields, we just use the + * FieldSet test. + */ + if( fip->field_bit == FIELD_CUSTOM ) + { + int ci, is_set = FALSE; + + for( ci = 0; ci < td->td_customValueCount; ci++ ) + is_set |= (td->td_customValues[ci].info == fip); + + if( !is_set ) + continue; + } + else if (!FieldSet(fields, fip->field_bit)) + continue; + + if( fip->field_bit != FIELD_CUSTOM ) + ResetFieldBit(fields, fip->field_bit); + } + + /* + * Write directory. + */ + dircount = (uint16) nfields; + *pdiroff = (uint32) tif->tif_nextdiroff; + if (tif->tif_flags & TIFF_SWAB) { + /* + * The file's byte order is opposite to the + * native machine architecture. We overwrite + * the directory information with impunity + * because it'll be released below after we + * write it to the file. Note that all the + * other tag construction routines assume that + * we do this byte-swapping; i.e. they only + * byte-swap indirect data. + */ + for (dir = (TIFFDirEntry*) data; dircount; dir++, dircount--) { + TIFFSwabArrayOfShort(&dir->tdir_tag, 2); + TIFFSwabArrayOfLong(&dir->tdir_count, 2); + } + dircount = (uint16) nfields; + TIFFSwabShort(&dircount); + TIFFSwabLong(pdiroff); + } + (void) TIFFSeekFile(tif, tif->tif_diroff, SEEK_SET); + if (!WriteOK(tif, &dircount, sizeof (dircount))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory count"); + goto bad; + } + if (!WriteOK(tif, data, dirsize)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory contents"); + goto bad; + } + if (!WriteOK(tif, pdiroff, sizeof (uint32))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing directory link"); + goto bad; + } + _TIFFfree(data); + return (1); +bad: + _TIFFfree(data); + return (0); +} + +int +TIFFWriteCustomDirectory(TIFF* tif, toff_t *pdiroff) +{ + return _TIFFWriteCustomDirectory(tif, pdiroff); +} + +/* + * Process tags that are not special cased. + */ +static int +TIFFWriteNormalTag(TIFF* tif, TIFFDirEntry* dir, const TIFFFieldInfo* fip) +{ + uint16 wc = (uint16) fip->field_writecount; + uint32 wc2; + + dir->tdir_tag = (uint16) fip->field_tag; + dir->tdir_type = (uint16) fip->field_type; + dir->tdir_count = wc; + + switch (fip->field_type) { + case TIFF_SHORT: + case TIFF_SSHORT: + if (fip->field_passcount) { + uint16* wp; + if (wc == (uint16) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &wp); + dir->tdir_count = wc2; + } else { /* Assume TIFF_VARIABLE */ + TIFFGetField(tif, fip->field_tag, &wc, &wp); + dir->tdir_count = wc; + } + if (!TIFFWriteShortArray(tif, dir, wp)) + return 0; + } else { + if (wc == 1) { + uint16 sv; + TIFFGetField(tif, fip->field_tag, &sv); + dir->tdir_offset = + TIFFInsertData(tif, dir->tdir_type, sv); + } else { + uint16* wp; + TIFFGetField(tif, fip->field_tag, &wp); + if (!TIFFWriteShortArray(tif, dir, wp)) + return 0; + } + } + break; + case TIFF_LONG: + case TIFF_SLONG: + case TIFF_IFD: + if (fip->field_passcount) { + uint32* lp; + if (wc == (uint16) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &lp); + dir->tdir_count = wc2; + } else { /* Assume TIFF_VARIABLE */ + TIFFGetField(tif, fip->field_tag, &wc, &lp); + dir->tdir_count = wc; + } + if (!TIFFWriteLongArray(tif, dir, lp)) + return 0; + } else { + if (wc == 1) { + /* XXX handle LONG->SHORT conversion */ + TIFFGetField(tif, fip->field_tag, + &dir->tdir_offset); + } else { + uint32* lp; + TIFFGetField(tif, fip->field_tag, &lp); + if (!TIFFWriteLongArray(tif, dir, lp)) + return 0; + } + } + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + if (fip->field_passcount) { + float* fp; + if (wc == (uint16) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &fp); + dir->tdir_count = wc2; + } else { /* Assume TIFF_VARIABLE */ + TIFFGetField(tif, fip->field_tag, &wc, &fp); + dir->tdir_count = wc; + } + if (!TIFFWriteRationalArray(tif, dir, fp)) + return 0; + } else { + if (wc == 1) { + float fv; + TIFFGetField(tif, fip->field_tag, &fv); + if (!TIFFWriteRationalArray(tif, dir, &fv)) + return 0; + } else { + float* fp; + TIFFGetField(tif, fip->field_tag, &fp); + if (!TIFFWriteRationalArray(tif, dir, fp)) + return 0; + } + } + break; + case TIFF_FLOAT: + if (fip->field_passcount) { + float* fp; + if (wc == (uint16) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &fp); + dir->tdir_count = wc2; + } else { /* Assume TIFF_VARIABLE */ + TIFFGetField(tif, fip->field_tag, &wc, &fp); + dir->tdir_count = wc; + } + if (!TIFFWriteFloatArray(tif, dir, fp)) + return 0; + } else { + if (wc == 1) { + float fv; + TIFFGetField(tif, fip->field_tag, &fv); + if (!TIFFWriteFloatArray(tif, dir, &fv)) + return 0; + } else { + float* fp; + TIFFGetField(tif, fip->field_tag, &fp); + if (!TIFFWriteFloatArray(tif, dir, fp)) + return 0; + } + } + break; + case TIFF_DOUBLE: + if (fip->field_passcount) { + double* dp; + if (wc == (uint16) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &dp); + dir->tdir_count = wc2; + } else { /* Assume TIFF_VARIABLE */ + TIFFGetField(tif, fip->field_tag, &wc, &dp); + dir->tdir_count = wc; + } + if (!TIFFWriteDoubleArray(tif, dir, dp)) + return 0; + } else { + if (wc == 1) { + double dv; + TIFFGetField(tif, fip->field_tag, &dv); + if (!TIFFWriteDoubleArray(tif, dir, &dv)) + return 0; + } else { + double* dp; + TIFFGetField(tif, fip->field_tag, &dp); + if (!TIFFWriteDoubleArray(tif, dir, dp)) + return 0; + } + } + break; + case TIFF_ASCII: + { + char* cp; + if (fip->field_passcount) + { + if( wc == (uint16) TIFF_VARIABLE2 ) + TIFFGetField(tif, fip->field_tag, &wc2, &cp); + else + TIFFGetField(tif, fip->field_tag, &wc, &cp); + } + else + TIFFGetField(tif, fip->field_tag, &cp); + + dir->tdir_count = (uint32) (strlen(cp) + 1); + if (!TIFFWriteByteArray(tif, dir, cp)) + return (0); + } + break; + + case TIFF_BYTE: + case TIFF_SBYTE: + if (fip->field_passcount) { + char* cp; + if (wc == (uint16) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &cp); + dir->tdir_count = wc2; + } else { /* Assume TIFF_VARIABLE */ + TIFFGetField(tif, fip->field_tag, &wc, &cp); + dir->tdir_count = wc; + } + if (!TIFFWriteByteArray(tif, dir, cp)) + return 0; + } else { + if (wc == 1) { + char cv; + TIFFGetField(tif, fip->field_tag, &cv); + if (!TIFFWriteByteArray(tif, dir, &cv)) + return 0; + } else { + char* cp; + TIFFGetField(tif, fip->field_tag, &cp); + if (!TIFFWriteByteArray(tif, dir, cp)) + return 0; + } + } + break; + + case TIFF_UNDEFINED: + { char* cp; + if (wc == (unsigned short) TIFF_VARIABLE) { + TIFFGetField(tif, fip->field_tag, &wc, &cp); + dir->tdir_count = wc; + } else if (wc == (unsigned short) TIFF_VARIABLE2) { + TIFFGetField(tif, fip->field_tag, &wc2, &cp); + dir->tdir_count = wc2; + } else + TIFFGetField(tif, fip->field_tag, &cp); + if (!TIFFWriteByteArray(tif, dir, cp)) + return (0); + } + break; + + case TIFF_NOTYPE: + break; + } + return (1); +} + +/* + * Setup a directory entry with either a SHORT + * or LONG type according to the value. + */ +static void +TIFFSetupShortLong(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint32 v) +{ + dir->tdir_tag = (uint16) tag; + dir->tdir_count = 1; + if (v > 0xffffL) { + dir->tdir_type = (short) TIFF_LONG; + dir->tdir_offset = v; + } else { + dir->tdir_type = (short) TIFF_SHORT; + dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v); + } +} + +/* + * Setup a SHORT directory entry + */ +static void +TIFFSetupShort(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint16 v) +{ + dir->tdir_tag = (uint16) tag; + dir->tdir_count = 1; + dir->tdir_type = (short) TIFF_SHORT; + dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v); +} +#undef MakeShortDirent + +#define NITEMS(x) (sizeof (x) / sizeof (x[0])) +/* + * Setup a directory entry that references a + * samples/pixel array of SHORT values and + * (potentially) write the associated indirect + * values. + */ +static int +TIFFWritePerSampleShorts(TIFF* tif, ttag_t tag, TIFFDirEntry* dir) +{ + uint16 buf[10], v; + uint16* w = buf; + uint16 i, samples = tif->tif_dir.td_samplesperpixel; + int status; + + if (samples > NITEMS(buf)) { + w = (uint16*) _TIFFmalloc(samples * sizeof (uint16)); + if (w == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No space to write per-sample shorts"); + return (0); + } + } + TIFFGetField(tif, tag, &v); + for (i = 0; i < samples; i++) + w[i] = v; + + dir->tdir_tag = (uint16) tag; + dir->tdir_type = (uint16) TIFF_SHORT; + dir->tdir_count = samples; + status = TIFFWriteShortArray(tif, dir, w); + if (w != buf) + _TIFFfree((char*) w); + return (status); +} + +/* + * Setup a directory entry that references a samples/pixel array of ``type'' + * values and (potentially) write the associated indirect values. The source + * data from TIFFGetField() for the specified tag must be returned as double. + */ +static int +TIFFWritePerSampleAnys(TIFF* tif, + TIFFDataType type, ttag_t tag, TIFFDirEntry* dir) +{ + double buf[10], v; + double* w = buf; + uint16 i, samples = tif->tif_dir.td_samplesperpixel; + int status; + + if (samples > NITEMS(buf)) { + w = (double*) _TIFFmalloc(samples * sizeof (double)); + if (w == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No space to write per-sample values"); + return (0); + } + } + TIFFGetField(tif, tag, &v); + for (i = 0; i < samples; i++) + w[i] = v; + status = TIFFWriteAnyArray(tif, type, tag, dir, samples, w); + if (w != buf) + _TIFFfree(w); + return (status); +} +#undef NITEMS + +/* + * Setup a pair of shorts that are returned by + * value, rather than as a reference to an array. + */ +static int +TIFFSetupShortPair(TIFF* tif, ttag_t tag, TIFFDirEntry* dir) +{ + uint16 v[2]; + + TIFFGetField(tif, tag, &v[0], &v[1]); + + dir->tdir_tag = (uint16) tag; + dir->tdir_type = (uint16) TIFF_SHORT; + dir->tdir_count = 2; + return (TIFFWriteShortArray(tif, dir, v)); +} + +/* + * Setup a directory entry for an NxM table of shorts, + * where M is known to be 2**bitspersample, and write + * the associated indirect data. + */ +static int +TIFFWriteShortTable(TIFF* tif, + ttag_t tag, TIFFDirEntry* dir, uint32 n, uint16** table) +{ + uint32 i, off; + + dir->tdir_tag = (uint16) tag; + dir->tdir_type = (short) TIFF_SHORT; + /* XXX -- yech, fool TIFFWriteData */ + dir->tdir_count = (uint32) (1L<<tif->tif_dir.td_bitspersample); + off = tif->tif_dataoff; + for (i = 0; i < n; i++) + if (!TIFFWriteData(tif, dir, (char *)table[i])) + return (0); + dir->tdir_count *= n; + dir->tdir_offset = off; + return (1); +} + +/* + * Write/copy data associated with an ASCII or opaque tag value. + */ +static int +TIFFWriteByteArray(TIFF* tif, TIFFDirEntry* dir, char* cp) +{ + if (dir->tdir_count <= 4) { + if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { + dir->tdir_offset = (uint32)cp[0] << 24; + if (dir->tdir_count >= 2) + dir->tdir_offset |= (uint32)cp[1] << 16; + if (dir->tdir_count >= 3) + dir->tdir_offset |= (uint32)cp[2] << 8; + if (dir->tdir_count == 4) + dir->tdir_offset |= cp[3]; + } else { + dir->tdir_offset = cp[0]; + if (dir->tdir_count >= 2) + dir->tdir_offset |= (uint32) cp[1] << 8; + if (dir->tdir_count >= 3) + dir->tdir_offset |= (uint32) cp[2] << 16; + if (dir->tdir_count == 4) + dir->tdir_offset |= (uint32) cp[3] << 24; + } + return 1; + } else + return TIFFWriteData(tif, dir, cp); +} + +/* + * Setup a directory entry of an array of SHORT + * or SSHORT and write the associated indirect values. + */ +static int +TIFFWriteShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v) +{ + if (dir->tdir_count <= 2) { + if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { + dir->tdir_offset = (uint32) v[0] << 16; + if (dir->tdir_count == 2) + dir->tdir_offset |= v[1] & 0xffff; + } else { + dir->tdir_offset = v[0] & 0xffff; + if (dir->tdir_count == 2) + dir->tdir_offset |= (uint32) v[1] << 16; + } + return (1); + } else + return (TIFFWriteData(tif, dir, (char*) v)); +} + +/* + * Setup a directory entry of an array of LONG + * or SLONG and write the associated indirect values. + */ +static int +TIFFWriteLongArray(TIFF* tif, TIFFDirEntry* dir, uint32* v) +{ + if (dir->tdir_count == 1) { + dir->tdir_offset = v[0]; + return (1); + } else + return (TIFFWriteData(tif, dir, (char*) v)); +} + +/* + * Setup a directory entry of an array of RATIONAL + * or SRATIONAL and write the associated indirect values. + */ +static int +TIFFWriteRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v) +{ + uint32 i; + uint32* t; + int status; + + t = (uint32*) _TIFFmalloc(2 * dir->tdir_count * sizeof (uint32)); + if (t == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No space to write RATIONAL array"); + return (0); + } + for (i = 0; i < dir->tdir_count; i++) { + float fv = v[i]; + int sign = 1; + uint32 den; + + if (fv < 0) { + if (dir->tdir_type == TIFF_RATIONAL) { + TIFFWarningExt(tif->tif_clientdata, + tif->tif_name, + "\"%s\": Information lost writing value (%g) as (unsigned) RATIONAL", + _TIFFFieldWithTag(tif,dir->tdir_tag)->field_name, + fv); + fv = 0; + } else + fv = -fv, sign = -1; + } + den = 1L; + if (fv > 0) { + while (fv < 1L<<(31-3) && den < 1L<<(31-3)) + fv *= 1<<3, den *= 1L<<3; + } + t[2*i+0] = (uint32) (sign * (fv + 0.5)); + t[2*i+1] = den; + } + status = TIFFWriteData(tif, dir, (char *)t); + _TIFFfree((char*) t); + return (status); +} + +static int +TIFFWriteFloatArray(TIFF* tif, TIFFDirEntry* dir, float* v) +{ + TIFFCvtNativeToIEEEFloat(tif, dir->tdir_count, v); + if (dir->tdir_count == 1) { + dir->tdir_offset = *(uint32*) &v[0]; + return (1); + } else + return (TIFFWriteData(tif, dir, (char*) v)); +} + +static int +TIFFWriteDoubleArray(TIFF* tif, TIFFDirEntry* dir, double* v) +{ + TIFFCvtNativeToIEEEDouble(tif, dir->tdir_count, v); + return (TIFFWriteData(tif, dir, (char*) v)); +} + +/* + * Write an array of ``type'' values for a specified tag (i.e. this is a tag + * which is allowed to have different types, e.g. SMaxSampleType). + * Internally the data values are represented as double since a double can + * hold any of the TIFF tag types (yes, this should really be an abstract + * type tany_t for portability). The data is converted into the specified + * type in a temporary buffer and then handed off to the appropriate array + * writer. + */ +static int +TIFFWriteAnyArray(TIFF* tif, + TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, double* v) +{ + char buf[10 * sizeof(double)]; + char* w = buf; + int i, status = 0; + + if (n * TIFFDataWidth(type) > sizeof buf) { + w = (char*) _TIFFmalloc(n * TIFFDataWidth(type)); + if (w == NULL) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No space to write array"); + return (0); + } + } + + dir->tdir_tag = (uint16) tag; + dir->tdir_type = (uint16) type; + dir->tdir_count = n; + + switch (type) { + case TIFF_BYTE: + { + uint8* bp = (uint8*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (uint8) v[i]; + if (!TIFFWriteByteArray(tif, dir, (char*) bp)) + goto out; + } + break; + case TIFF_SBYTE: + { + int8* bp = (int8*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (int8) v[i]; + if (!TIFFWriteByteArray(tif, dir, (char*) bp)) + goto out; + } + break; + case TIFF_SHORT: + { + uint16* bp = (uint16*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (uint16) v[i]; + if (!TIFFWriteShortArray(tif, dir, (uint16*)bp)) + goto out; + } + break; + case TIFF_SSHORT: + { + int16* bp = (int16*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (int16) v[i]; + if (!TIFFWriteShortArray(tif, dir, (uint16*)bp)) + goto out; + } + break; + case TIFF_LONG: + { + uint32* bp = (uint32*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (uint32) v[i]; + if (!TIFFWriteLongArray(tif, dir, bp)) + goto out; + } + break; + case TIFF_SLONG: + { + int32* bp = (int32*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (int32) v[i]; + if (!TIFFWriteLongArray(tif, dir, (uint32*) bp)) + goto out; + } + break; + case TIFF_FLOAT: + { + float* bp = (float*) w; + for (i = 0; i < (int) n; i++) + bp[i] = (float) v[i]; + if (!TIFFWriteFloatArray(tif, dir, bp)) + goto out; + } + break; + case TIFF_DOUBLE: + { + if( !TIFFWriteDoubleArray(tif, dir, v)) + goto out; + } + break; + default: + /* TIFF_NOTYPE */ + /* TIFF_ASCII */ + /* TIFF_UNDEFINED */ + /* TIFF_RATIONAL */ + /* TIFF_SRATIONAL */ + goto out; + } + status = 1; + out: + if (w != buf) + _TIFFfree(w); + return (status); +} + +static int +TIFFWriteTransferFunction(TIFF* tif, TIFFDirEntry* dir) +{ + TIFFDirectory* td = &tif->tif_dir; + tsize_t n = (1L<<td->td_bitspersample) * sizeof (uint16); + uint16** tf = td->td_transferfunction; + int ncols; + + /* + * Check if the table can be written as a single column, + * or if it must be written as 3 columns. Note that we + * write a 3-column tag if there are 2 samples/pixel and + * a single column of data won't suffice--hmm. + */ + switch (td->td_samplesperpixel - td->td_extrasamples) { + default: if (_TIFFmemcmp(tf[0], tf[2], n)) { ncols = 3; break; } + case 2: if (_TIFFmemcmp(tf[0], tf[1], n)) { ncols = 3; break; } + case 1: case 0: ncols = 1; + } + return (TIFFWriteShortTable(tif, + TIFFTAG_TRANSFERFUNCTION, dir, ncols, tf)); +} + +static int +TIFFWriteInkNames(TIFF* tif, TIFFDirEntry* dir) +{ + TIFFDirectory* td = &tif->tif_dir; + + dir->tdir_tag = TIFFTAG_INKNAMES; + dir->tdir_type = (short) TIFF_ASCII; + dir->tdir_count = td->td_inknameslen; + return (TIFFWriteByteArray(tif, dir, td->td_inknames)); +} + +/* + * Write a contiguous directory item. + */ +static int +TIFFWriteData(TIFF* tif, TIFFDirEntry* dir, char* cp) +{ + tsize_t cc; + + if (tif->tif_flags & TIFF_SWAB) { + switch (dir->tdir_type) { + case TIFF_SHORT: + case TIFF_SSHORT: + TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count); + break; + case TIFF_LONG: + case TIFF_SLONG: + case TIFF_FLOAT: + TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count); + break; + case TIFF_RATIONAL: + case TIFF_SRATIONAL: + TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count); + break; + case TIFF_DOUBLE: + TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count); + break; + } + } + dir->tdir_offset = tif->tif_dataoff; + cc = dir->tdir_count * TIFFDataWidth((TIFFDataType) dir->tdir_type); + if (SeekOK(tif, dir->tdir_offset) && + WriteOK(tif, cp, cc)) { + tif->tif_dataoff += (cc + 1) & ~1; + return (1); + } + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing data for field \"%s\"", + _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); + return (0); +} + +/* + * Similar to TIFFWriteDirectory(), but if the directory has already + * been written once, it is relocated to the end of the file, in case it + * has changed in size. Note that this will result in the loss of the + * previously used directory space. + */ + +int +TIFFRewriteDirectory( TIFF *tif ) +{ + static const char module[] = "TIFFRewriteDirectory"; + + /* We don't need to do anything special if it hasn't been written. */ + if( tif->tif_diroff == 0 ) + return TIFFWriteDirectory( tif ); + + /* + ** Find and zero the pointer to this directory, so that TIFFLinkDirectory + ** will cause it to be added after this directories current pre-link. + */ + + /* Is it the first directory in the file? */ + if (tif->tif_header.tiff_diroff == tif->tif_diroff) + { + tif->tif_header.tiff_diroff = 0; + tif->tif_diroff = 0; + + TIFFSeekFile(tif, (toff_t)(TIFF_MAGIC_SIZE+TIFF_VERSION_SIZE), + SEEK_SET); + if (!WriteOK(tif, &(tif->tif_header.tiff_diroff), + sizeof (tif->tif_diroff))) + { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error updating TIFF header"); + return (0); + } + } + else + { + toff_t nextdir, off; + + nextdir = tif->tif_header.tiff_diroff; + do { + uint16 dircount; + + if (!SeekOK(tif, nextdir) || + !ReadOK(tif, &dircount, sizeof (dircount))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory count"); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + (void) TIFFSeekFile(tif, + dircount * sizeof (TIFFDirEntry), SEEK_CUR); + if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory link"); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(&nextdir); + } while (nextdir != tif->tif_diroff && nextdir != 0); + off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */ + (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET); + tif->tif_diroff = 0; + if (!WriteOK(tif, &(tif->tif_diroff), sizeof (nextdir))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Error writing directory link"); + return (0); + } + } + + /* + ** Now use TIFFWriteDirectory() normally. + */ + + return TIFFWriteDirectory( tif ); +} + + +/* + * Link the current directory into the directory chain for the file. + */ +static int +TIFFLinkDirectory(TIFF* tif) +{ + static const char module[] = "TIFFLinkDirectory"; + toff_t nextdir; + toff_t diroff, off; + + tif->tif_diroff = (TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1; + diroff = tif->tif_diroff; + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(&diroff); + + /* + * Handle SubIFDs + */ + if (tif->tif_flags & TIFF_INSUBIFD) { + (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET); + if (!WriteOK(tif, &diroff, sizeof (diroff))) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Error writing SubIFD directory link", + tif->tif_name); + return (0); + } + /* + * Advance to the next SubIFD or, if this is + * the last one configured, revert back to the + * normal directory linkage. + */ + if (--tif->tif_nsubifd) + tif->tif_subifdoff += sizeof (diroff); + else + tif->tif_flags &= ~TIFF_INSUBIFD; + return (1); + } + + if (tif->tif_header.tiff_diroff == 0) { + /* + * First directory, overwrite offset in header. + */ + tif->tif_header.tiff_diroff = tif->tif_diroff; + (void) TIFFSeekFile(tif, + (toff_t)(TIFF_MAGIC_SIZE+TIFF_VERSION_SIZE), + SEEK_SET); + if (!WriteOK(tif, &diroff, sizeof (diroff))) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Error writing TIFF header"); + return (0); + } + return (1); + } + /* + * Not the first directory, search to the last and append. + */ + nextdir = tif->tif_header.tiff_diroff; + do { + uint16 dircount; + + if (!SeekOK(tif, nextdir) || + !ReadOK(tif, &dircount, sizeof (dircount))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory count"); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&dircount); + (void) TIFFSeekFile(tif, + dircount * sizeof (TIFFDirEntry), SEEK_CUR); + if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Error fetching directory link"); + return (0); + } + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabLong(&nextdir); + } while (nextdir != 0); + off = TIFFSeekFile(tif, 0, SEEK_CUR); /* get current offset */ + (void) TIFFSeekFile(tif, off - (toff_t)sizeof(nextdir), SEEK_SET); + if (!WriteOK(tif, &diroff, sizeof (diroff))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Error writing directory link"); + return (0); + } + return (1); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_dumpmode.c b/tiff/libtiff/tif_dumpmode.c new file mode 100644 index 0000000..da86150 --- /dev/null +++ b/tiff/libtiff/tif_dumpmode.c @@ -0,0 +1,126 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dumpmode.c,v 1.5.2.2 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * "Null" Compression Algorithm Support. + */ +#include "tiffiop.h" + +/* + * Encode a hunk of pixels. + */ +static int +DumpModeEncode(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) s; + while (cc > 0) { + tsize_t n; + + n = cc; + if (tif->tif_rawcc + n > tif->tif_rawdatasize) + n = tif->tif_rawdatasize - tif->tif_rawcc; + + assert( n > 0 ); + + /* + * Avoid copy if client has setup raw + * data buffer to avoid extra copy. + */ + if (tif->tif_rawcp != pp) + _TIFFmemcpy(tif->tif_rawcp, pp, n); + tif->tif_rawcp += n; + tif->tif_rawcc += n; + pp += n; + cc -= n; + if (tif->tif_rawcc >= tif->tif_rawdatasize && + !TIFFFlushData1(tif)) + return (-1); + } + return (1); +} + +/* + * Decode a hunk of pixels. + */ +static int +DumpModeDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + (void) s; +/* fprintf(stderr,"DumpModeDecode: scanline %ld, expected %ld bytes, got %ld bytes\n", */ +/* (long) tif->tif_row, (long) tif->tif_rawcc, (long) cc); */ + if (tif->tif_rawcc < cc) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "DumpModeDecode: Not enough data for scanline %d", + tif->tif_row); + return (0); + } + /* + * Avoid copy if client has setup raw + * data buffer to avoid extra copy. + */ + if (tif->tif_rawcp != buf) + _TIFFmemcpy(buf, tif->tif_rawcp, cc); + tif->tif_rawcp += cc; + tif->tif_rawcc -= cc; + return (1); +} + +/* + * Seek forwards nrows in the current strip. + */ +static int +DumpModeSeek(TIFF* tif, uint32 nrows) +{ + tif->tif_rawcp += nrows * tif->tif_scanlinesize; + tif->tif_rawcc -= nrows * tif->tif_scanlinesize; + return (1); +} + +/* + * Initialize dump mode. + */ +int +TIFFInitDumpMode(TIFF* tif, int scheme) +{ + (void) scheme; + tif->tif_decoderow = DumpModeDecode; + tif->tif_decodestrip = DumpModeDecode; + tif->tif_decodetile = DumpModeDecode; + tif->tif_encoderow = DumpModeEncode; + tif->tif_encodestrip = DumpModeEncode; + tif->tif_encodetile = DumpModeEncode; + tif->tif_seek = DumpModeSeek; + return (1); +} +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_error.c b/tiff/libtiff/tif_error.c new file mode 100644 index 0000000..2377abd --- /dev/null +++ b/tiff/libtiff/tif_error.c @@ -0,0 +1,80 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_error.c,v 1.4.2.1 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + */ +#include "tiffiop.h" + +TIFFErrorHandlerExt _TIFFerrorHandlerExt = NULL; + +TIFFErrorHandler +TIFFSetErrorHandler(TIFFErrorHandler handler) +{ + TIFFErrorHandler prev = _TIFFerrorHandler; + _TIFFerrorHandler = handler; + return (prev); +} + +TIFFErrorHandlerExt +TIFFSetErrorHandlerExt(TIFFErrorHandlerExt handler) +{ + TIFFErrorHandlerExt prev = _TIFFerrorHandlerExt; + _TIFFerrorHandlerExt = handler; + return (prev); +} + +void +TIFFError(const char* module, const char* fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + if (_TIFFerrorHandler) + (*_TIFFerrorHandler)(module, fmt, ap); + if (_TIFFerrorHandlerExt) + (*_TIFFerrorHandlerExt)(0, module, fmt, ap); + va_end(ap); +} + +void +TIFFErrorExt(thandle_t fd, const char* module, const char* fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + if (_TIFFerrorHandler) + (*_TIFFerrorHandler)(module, fmt, ap); + if (_TIFFerrorHandlerExt) + (*_TIFFerrorHandlerExt)(fd, module, fmt, ap); + va_end(ap); +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_extension.c b/tiff/libtiff/tif_extension.c new file mode 100644 index 0000000..b67c0f0 --- /dev/null +++ b/tiff/libtiff/tif_extension.c @@ -0,0 +1,118 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_extension.c,v 1.4.2.1 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Various routines support external extension of the tag set, and other + * application extension capabilities. + */ + +#include "tiffiop.h" + +int TIFFGetTagListCount( TIFF *tif ) + +{ + TIFFDirectory* td = &tif->tif_dir; + + return td->td_customValueCount; +} + +ttag_t TIFFGetTagListEntry( TIFF *tif, int tag_index ) + +{ + TIFFDirectory* td = &tif->tif_dir; + + if( tag_index < 0 || tag_index >= td->td_customValueCount ) + return (ttag_t) -1; + else + return td->td_customValues[tag_index].info->field_tag; +} + +/* +** This provides read/write access to the TIFFTagMethods within the TIFF +** structure to application code without giving access to the private +** TIFF structure. +*/ +TIFFTagMethods *TIFFAccessTagMethods( TIFF *tif ) + +{ + return &(tif->tif_tagmethods); +} + +void *TIFFGetClientInfo( TIFF *tif, const char *name ) + +{ + TIFFClientInfoLink *link = tif->tif_clientinfo; + + while( link != NULL && strcmp(link->name,name) != 0 ) + link = link->next; + + if( link != NULL ) + return link->data; + else + return NULL; +} + +void TIFFSetClientInfo( TIFF *tif, void *data, const char *name ) + +{ + TIFFClientInfoLink *link = tif->tif_clientinfo; + + /* + ** Do we have an existing link with this name? If so, just + ** set it. + */ + while( link != NULL && strcmp(link->name,name) != 0 ) + link = link->next; + + if( link != NULL ) + { + link->data = data; + return; + } + + /* + ** Create a new link. + */ + + link = (TIFFClientInfoLink *) _TIFFmalloc(sizeof(TIFFClientInfoLink)); + assert (link != NULL); + link->next = tif->tif_clientinfo; + link->name = (char *) _TIFFmalloc(strlen(name)+1); + assert (link->name != NULL); + strcpy(link->name, name); + link->data = data; + + tif->tif_clientinfo = link; +} +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_fax3.c b/tiff/libtiff/tif_fax3.c new file mode 100644 index 0000000..9eec4ab --- /dev/null +++ b/tiff/libtiff/tif_fax3.c @@ -0,0 +1,1626 @@ +/* $Id: tif_fax3.c,v 1.43.2.10 2010-06-09 17:16:58 bfriesen Exp $ */ + +/* + * Copyright (c) 1990-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef CCITT_SUPPORT +/* + * TIFF Library. + * + * CCITT Group 3 (T.4) and Group 4 (T.6) Compression Support. + * + * This file contains support for decoding and encoding TIFF + * compression algorithms 2, 3, 4, and 32771. + * + * Decoder support is derived, with permission, from the code + * in Frank Cringle's viewfax program; + * Copyright (C) 1990, 1995 Frank D. Cringle. + */ +#include "tif_fax3.h" +#define G3CODES +#include "t4.h" +#include <stdio.h> + +/* + * Compression+decompression state blocks are + * derived from this ``base state'' block. + */ +typedef struct { + int rw_mode; /* O_RDONLY for decode, else encode */ + int mode; /* operating mode */ + uint32 rowbytes; /* bytes in a decoded scanline */ + uint32 rowpixels; /* pixels in a scanline */ + + uint16 cleanfaxdata; /* CleanFaxData tag */ + uint32 badfaxrun; /* BadFaxRun tag */ + uint32 badfaxlines; /* BadFaxLines tag */ + uint32 groupoptions; /* Group 3/4 options tag */ + uint32 recvparams; /* encoded Class 2 session params */ + char* subaddress; /* subaddress string */ + uint32 recvtime; /* time spent receiving (secs) */ + char* faxdcs; /* Table 2/T.30 encoded session params */ + TIFFVGetMethod vgetparent; /* super-class method */ + TIFFVSetMethod vsetparent; /* super-class method */ + TIFFPrintMethod printdir; /* super-class method */ +} Fax3BaseState; +#define Fax3State(tif) ((Fax3BaseState*) (tif)->tif_data) + +typedef enum { G3_1D, G3_2D } Ttag; +typedef struct { + Fax3BaseState b; + + /* Decoder state info */ + const unsigned char* bitmap; /* bit reversal table */ + uint32 data; /* current i/o byte/word */ + int bit; /* current i/o bit in byte */ + int EOLcnt; /* count of EOL codes recognized */ + TIFFFaxFillFunc fill; /* fill routine */ + uint32* runs; /* b&w runs for current/previous row */ + uint32* refruns; /* runs for reference line */ + uint32* curruns; /* runs for current line */ + + /* Encoder state info */ + Ttag tag; /* encoding state */ + unsigned char* refline; /* reference line for 2d decoding */ + int k; /* #rows left that can be 2d encoded */ + int maxk; /* max #rows that can be 2d encoded */ + + int line; +} Fax3CodecState; +#define DecoderState(tif) ((Fax3CodecState*) Fax3State(tif)) +#define EncoderState(tif) ((Fax3CodecState*) Fax3State(tif)) + +#define is2DEncoding(sp) \ + (sp->b.groupoptions & GROUP3OPT_2DENCODING) +#define isAligned(p,t) ((((unsigned long)(p)) & (sizeof (t)-1)) == 0) + +/* + * Group 3 and Group 4 Decoding. + */ + +/* + * These macros glue the TIFF library state to + * the state expected by Frank's decoder. + */ +#define DECLARE_STATE(tif, sp, mod) \ + static const char module[] = mod; \ + Fax3CodecState* sp = DecoderState(tif); \ + int a0; /* reference element */ \ + int lastx = sp->b.rowpixels; /* last element in row */ \ + uint32 BitAcc; /* bit accumulator */ \ + int BitsAvail; /* # valid bits in BitAcc */ \ + int RunLength; /* length of current run */ \ + unsigned char* cp; /* next byte of input data */ \ + unsigned char* ep; /* end of input data */ \ + uint32* pa; /* place to stuff next run */ \ + uint32* thisrun; /* current row's run array */ \ + int EOLcnt; /* # EOL codes recognized */ \ + const unsigned char* bitmap = sp->bitmap; /* input data bit reverser */ \ + const TIFFFaxTabEnt* TabEnt +#define DECLARE_STATE_2D(tif, sp, mod) \ + DECLARE_STATE(tif, sp, mod); \ + int b1; /* next change on prev line */ \ + uint32* pb /* next run in reference line */\ +/* + * Load any state that may be changed during decoding. + */ +#define CACHE_STATE(tif, sp) do { \ + BitAcc = sp->data; \ + BitsAvail = sp->bit; \ + EOLcnt = sp->EOLcnt; \ + cp = (unsigned char*) tif->tif_rawcp; \ + ep = cp + tif->tif_rawcc; \ +} while (0) +/* + * Save state possibly changed during decoding. + */ +#define UNCACHE_STATE(tif, sp) do { \ + sp->bit = BitsAvail; \ + sp->data = BitAcc; \ + sp->EOLcnt = EOLcnt; \ + tif->tif_rawcc -= (tidata_t) cp - tif->tif_rawcp; \ + tif->tif_rawcp = (tidata_t) cp; \ +} while (0) + +/* + * Setup state for decoding a strip. + */ +static int +Fax3PreDecode(TIFF* tif, tsample_t s) +{ + Fax3CodecState* sp = DecoderState(tif); + + (void) s; + assert(sp != NULL); + sp->bit = 0; /* force initial read */ + sp->data = 0; + sp->EOLcnt = 0; /* force initial scan for EOL */ + /* + * Decoder assumes lsb-to-msb bit order. Note that we select + * this here rather than in Fax3SetupState so that viewers can + * hold the image open, fiddle with the FillOrder tag value, + * and then re-decode the image. Otherwise they'd need to close + * and open the image to get the state reset. + */ + sp->bitmap = + TIFFGetBitRevTable(tif->tif_dir.td_fillorder != FILLORDER_LSB2MSB); + if (sp->refruns) { /* init reference line to white */ + sp->refruns[0] = (uint32) sp->b.rowpixels; + sp->refruns[1] = 0; + } + sp->line = 0; + return (1); +} + +/* + * Routine for handling various errors/conditions. + * Note how they are "glued into the decoder" by + * overriding the definitions used by the decoder. + */ + +static void +Fax3Unexpected(const char* module, TIFF* tif, uint32 line, uint32 a0) +{ + TIFFErrorExt(tif->tif_clientdata, module, "%s: Bad code word at line %u of %s %u (x %u)", + tif->tif_name, line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0); +} +#define unexpected(table, a0) Fax3Unexpected(module, tif, sp->line, a0) + +static void +Fax3Extension(const char* module, TIFF* tif, uint32 line, uint32 a0) +{ + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Uncompressed data (not supported) at line %u of %s %u (x %u)", + tif->tif_name, line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0); +} +#define extension(a0) Fax3Extension(module, tif, sp->line, a0) + +static void +Fax3BadLength(const char* module, TIFF* tif, uint32 line, uint32 a0, uint32 lastx) +{ + TIFFWarningExt(tif->tif_clientdata, module, "%s: %s at line %u of %s %u (got %u, expected %u)", + tif->tif_name, + a0 < lastx ? "Premature EOL" : "Line length mismatch", + line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0, lastx); +} +#define badlength(a0,lastx) Fax3BadLength(module, tif, sp->line, a0, lastx) + +static void +Fax3PrematureEOF(const char* module, TIFF* tif, uint32 line, uint32 a0) +{ + TIFFWarningExt(tif->tif_clientdata, module, "%s: Premature EOF at line %u of %s %u (x %u)", + tif->tif_name, + line, isTiled(tif) ? "tile" : "strip", + (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), + a0); +} +#define prematureEOF(a0) Fax3PrematureEOF(module, tif, sp->line, a0) + +#define Nop + +/* + * Decode the requested amount of G3 1D-encoded data. + */ +static int +Fax3Decode1D(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +{ + DECLARE_STATE(tif, sp, "Fax3Decode1D"); + + (void) s; + CACHE_STATE(tif, sp); + thisrun = sp->curruns; + while ((long)occ > 0) { + a0 = 0; + RunLength = 0; + pa = thisrun; +#ifdef FAX3_DEBUG + printf("\nBitAcc=%08X, BitsAvail = %d\n", BitAcc, BitsAvail); + printf("-------------------- %d\n", tif->tif_row); + fflush(stdout); +#endif + SYNC_EOL(EOF1D); + EXPAND1D(EOF1Da); + (*sp->fill)(buf, thisrun, pa, lastx); + buf += sp->b.rowbytes; + occ -= sp->b.rowbytes; + sp->line++; + continue; + EOF1D: /* premature EOF */ + CLEANUP_RUNS(); + EOF1Da: /* premature EOF */ + (*sp->fill)(buf, thisrun, pa, lastx); + UNCACHE_STATE(tif, sp); + return (-1); + } + UNCACHE_STATE(tif, sp); + return (1); +} + +#define SWAP(t,a,b) { t x; x = (a); (a) = (b); (b) = x; } +/* + * Decode the requested amount of G3 2D-encoded data. + */ +static int +Fax3Decode2D(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +{ + DECLARE_STATE_2D(tif, sp, "Fax3Decode2D"); + int is1D; /* current line is 1d/2d-encoded */ + + (void) s; + CACHE_STATE(tif, sp); + while ((long)occ > 0) { + a0 = 0; + RunLength = 0; + pa = thisrun = sp->curruns; +#ifdef FAX3_DEBUG + printf("\nBitAcc=%08X, BitsAvail = %d EOLcnt = %d", + BitAcc, BitsAvail, EOLcnt); +#endif + SYNC_EOL(EOF2D); + NeedBits8(1, EOF2D); + is1D = GetBits(1); /* 1D/2D-encoding tag bit */ + ClrBits(1); +#ifdef FAX3_DEBUG + printf(" %s\n-------------------- %d\n", + is1D ? "1D" : "2D", tif->tif_row); + fflush(stdout); +#endif + pb = sp->refruns; + b1 = *pb++; + if (is1D) + EXPAND1D(EOF2Da); + else + EXPAND2D(EOF2Da); + (*sp->fill)(buf, thisrun, pa, lastx); + SETVALUE(0); /* imaginary change for reference */ + SWAP(uint32*, sp->curruns, sp->refruns); + buf += sp->b.rowbytes; + occ -= sp->b.rowbytes; + sp->line++; + continue; + EOF2D: /* premature EOF */ + CLEANUP_RUNS(); + EOF2Da: /* premature EOF */ + (*sp->fill)(buf, thisrun, pa, lastx); + UNCACHE_STATE(tif, sp); + return (-1); + } + UNCACHE_STATE(tif, sp); + return (1); +} +#undef SWAP + +/* + * The ZERO & FILL macros must handle spans < 2*sizeof(long) bytes. + * For machines with 64-bit longs this is <16 bytes; otherwise + * this is <8 bytes. We optimize the code here to reflect the + * machine characteristics. + */ +#if SIZEOF_LONG == 8 +# define FILL(n, cp) \ + switch (n) { \ + case 15:(cp)[14] = 0xff; case 14:(cp)[13] = 0xff; case 13: (cp)[12] = 0xff;\ + case 12:(cp)[11] = 0xff; case 11:(cp)[10] = 0xff; case 10: (cp)[9] = 0xff;\ + case 9: (cp)[8] = 0xff; case 8: (cp)[7] = 0xff; case 7: (cp)[6] = 0xff;\ + case 6: (cp)[5] = 0xff; case 5: (cp)[4] = 0xff; case 4: (cp)[3] = 0xff;\ + case 3: (cp)[2] = 0xff; case 2: (cp)[1] = 0xff; \ + case 1: (cp)[0] = 0xff; (cp) += (n); case 0: ; \ + } +# define ZERO(n, cp) \ + switch (n) { \ + case 15:(cp)[14] = 0; case 14:(cp)[13] = 0; case 13: (cp)[12] = 0; \ + case 12:(cp)[11] = 0; case 11:(cp)[10] = 0; case 10: (cp)[9] = 0; \ + case 9: (cp)[8] = 0; case 8: (cp)[7] = 0; case 7: (cp)[6] = 0; \ + case 6: (cp)[5] = 0; case 5: (cp)[4] = 0; case 4: (cp)[3] = 0; \ + case 3: (cp)[2] = 0; case 2: (cp)[1] = 0; \ + case 1: (cp)[0] = 0; (cp) += (n); case 0: ; \ + } +#else +# define FILL(n, cp) \ + switch (n) { \ + case 7: (cp)[6] = 0xff; case 6: (cp)[5] = 0xff; case 5: (cp)[4] = 0xff; \ + case 4: (cp)[3] = 0xff; case 3: (cp)[2] = 0xff; case 2: (cp)[1] = 0xff; \ + case 1: (cp)[0] = 0xff; (cp) += (n); case 0: ; \ + } +# define ZERO(n, cp) \ + switch (n) { \ + case 7: (cp)[6] = 0; case 6: (cp)[5] = 0; case 5: (cp)[4] = 0; \ + case 4: (cp)[3] = 0; case 3: (cp)[2] = 0; case 2: (cp)[1] = 0; \ + case 1: (cp)[0] = 0; (cp) += (n); case 0: ; \ + } +#endif + +/* + * Bit-fill a row according to the white/black + * runs generated during G3/G4 decoding. + */ +void +_TIFFFax3fillruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx) +{ + static const unsigned char _fillmasks[] = + { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; + unsigned char* cp; + uint32 x, bx, run; + int32 n, nw; + long* lp; + + if ((erun-runs)&1) + *erun++ = 0; + x = 0; + for (; runs < erun; runs += 2) { + run = runs[0]; + if (x+run > lastx || run > lastx ) + run = runs[0] = (uint32) (lastx - x); + if (run) { + cp = buf + (x>>3); + bx = x&7; + if (run > 8-bx) { + if (bx) { /* align to byte boundary */ + *cp++ &= 0xff << (8-bx); + run -= 8-bx; + } + if( (n = run >> 3) != 0 ) { /* multiple bytes to fill */ + if ((n/sizeof (long)) > 1) { + /* + * Align to longword boundary and fill. + */ + for (; n && !isAligned(cp, long); n--) + *cp++ = 0x00; + lp = (long*) cp; + nw = (int32)(n / sizeof (long)); + n -= nw * sizeof (long); + do { + *lp++ = 0L; + } while (--nw); + cp = (unsigned char*) lp; + } + ZERO(n, cp); + run &= 7; + } + if (run) + cp[0] &= 0xff >> run; + } else + cp[0] &= ~(_fillmasks[run]>>bx); + x += runs[0]; + } + run = runs[1]; + if (x+run > lastx || run > lastx ) + run = runs[1] = lastx - x; + if (run) { + cp = buf + (x>>3); + bx = x&7; + if (run > 8-bx) { + if (bx) { /* align to byte boundary */ + *cp++ |= 0xff >> bx; + run -= 8-bx; + } + if( (n = run>>3) != 0 ) { /* multiple bytes to fill */ + if ((n/sizeof (long)) > 1) { + /* + * Align to longword boundary and fill. + */ + for (; n && !isAligned(cp, long); n--) + *cp++ = 0xff; + lp = (long*) cp; + nw = (int32)(n / sizeof (long)); + n -= nw * sizeof (long); + do { + *lp++ = -1L; + } while (--nw); + cp = (unsigned char*) lp; + } + FILL(n, cp); + run &= 7; + } + if (run) + cp[0] |= 0xff00 >> run; + } else + cp[0] |= _fillmasks[run]>>bx; + x += runs[1]; + } + } + assert(x == lastx); +} +#undef ZERO +#undef FILL + +/* + * Setup G3/G4-related compression/decompression state + * before data is processed. This routine is called once + * per image -- it sets up different state based on whether + * or not decoding or encoding is being done and whether + * 1D- or 2D-encoded data is involved. + */ +static int +Fax3SetupState(TIFF* tif) +{ + TIFFDirectory* td = &tif->tif_dir; + Fax3BaseState* sp = Fax3State(tif); + int needsRefLine; + Fax3CodecState* dsp = (Fax3CodecState*) Fax3State(tif); + uint32 rowbytes, rowpixels, nruns; + + if (td->td_bitspersample != 1) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Bits/sample must be 1 for Group 3/4 encoding/decoding"); + return (0); + } + /* + * Calculate the scanline/tile widths. + */ + if (isTiled(tif)) { + rowbytes = TIFFTileRowSize(tif); + rowpixels = td->td_tilewidth; + } else { + rowbytes = TIFFScanlineSize(tif); + rowpixels = td->td_imagewidth; + } + sp->rowbytes = (uint32) rowbytes; + sp->rowpixels = (uint32) rowpixels; + /* + * Allocate any additional space required for decoding/encoding. + */ + needsRefLine = ( + (sp->groupoptions & GROUP3OPT_2DENCODING) || + td->td_compression == COMPRESSION_CCITTFAX4 + ); + + /* + Assure that allocation computations do not overflow. + + TIFFroundup and TIFFSafeMultiply return zero on integer overflow + */ + dsp->runs=(uint32*) NULL; + nruns = TIFFroundup(rowpixels,32); + if (needsRefLine) { + nruns = TIFFSafeMultiply(uint32,nruns,2); + } + if ((nruns == 0) || (TIFFSafeMultiply(uint32,nruns,2) == 0)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Row pixels integer overflow (rowpixels %u)", + rowpixels); + return (0); + } + dsp->runs = (uint32*) _TIFFCheckMalloc(tif, + TIFFSafeMultiply(uint32,nruns,2), + sizeof (uint32), + "for Group 3/4 run arrays"); + if (dsp->runs == NULL) + return (0); + dsp->curruns = dsp->runs; + if (needsRefLine) + dsp->refruns = dsp->runs + nruns; + else + dsp->refruns = NULL; + if (td->td_compression == COMPRESSION_CCITTFAX3 + && is2DEncoding(dsp)) { /* NB: default is 1D routine */ + tif->tif_decoderow = Fax3Decode2D; + tif->tif_decodestrip = Fax3Decode2D; + tif->tif_decodetile = Fax3Decode2D; + } + + if (needsRefLine) { /* 2d encoding */ + Fax3CodecState* esp = EncoderState(tif); + /* + * 2d encoding requires a scanline + * buffer for the ``reference line''; the + * scanline against which delta encoding + * is referenced. The reference line must + * be initialized to be ``white'' (done elsewhere). + */ + esp->refline = (unsigned char*) _TIFFmalloc(rowbytes); + if (esp->refline == NULL) { + TIFFErrorExt(tif->tif_clientdata, "Fax3SetupState", + "%s: No space for Group 3/4 reference line", + tif->tif_name); + return (0); + } + } else /* 1d encoding */ + EncoderState(tif)->refline = NULL; + + return (1); +} + +/* + * CCITT Group 3 FAX Encoding. + */ + +#define Fax3FlushBits(tif, sp) { \ + if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize) \ + (void) TIFFFlushData1(tif); \ + *(tif)->tif_rawcp++ = (tidataval_t) (sp)->data; \ + (tif)->tif_rawcc++; \ + (sp)->data = 0, (sp)->bit = 8; \ +} +#define _FlushBits(tif) { \ + if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize) \ + (void) TIFFFlushData1(tif); \ + *(tif)->tif_rawcp++ = (tidataval_t) data; \ + (tif)->tif_rawcc++; \ + data = 0, bit = 8; \ +} +static const int _msbmask[9] = + { 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; +#define _PutBits(tif, bits, length) { \ + while (length > bit) { \ + data |= bits >> (length - bit); \ + length -= bit; \ + _FlushBits(tif); \ + } \ + data |= (bits & _msbmask[length]) << (bit - length); \ + bit -= length; \ + if (bit == 0) \ + _FlushBits(tif); \ +} + +/* + * Write a variable-length bit-value to + * the output stream. Values are + * assumed to be at most 16 bits. + */ +static void +Fax3PutBits(TIFF* tif, unsigned int bits, unsigned int length) +{ + Fax3CodecState* sp = EncoderState(tif); + unsigned int bit = sp->bit; + int data = sp->data; + + _PutBits(tif, bits, length); + + sp->data = data; + sp->bit = bit; +} + +/* + * Write a code to the output stream. + */ +#define putcode(tif, te) Fax3PutBits(tif, (te)->code, (te)->length) + +#ifdef FAX3_DEBUG +#define DEBUG_COLOR(w) (tab == TIFFFaxWhiteCodes ? w "W" : w "B") +#define DEBUG_PRINT(what,len) { \ + int t; \ + printf("%08X/%-2d: %s%5d\t", data, bit, DEBUG_COLOR(what), len); \ + for (t = length-1; t >= 0; t--) \ + putchar(code & (1<<t) ? '1' : '0'); \ + putchar('\n'); \ +} +#endif + +/* + * Write the sequence of codes that describes + * the specified span of zero's or one's. The + * appropriate table that holds the make-up and + * terminating codes is supplied. + */ +static void +putspan(TIFF* tif, int32 span, const tableentry* tab) +{ + Fax3CodecState* sp = EncoderState(tif); + unsigned int bit = sp->bit; + int data = sp->data; + unsigned int code, length; + + while (span >= 2624) { + const tableentry* te = &tab[63 + (2560>>6)]; + code = te->code, length = te->length; +#ifdef FAX3_DEBUG + DEBUG_PRINT("MakeUp", te->runlen); +#endif + _PutBits(tif, code, length); + span -= te->runlen; + } + if (span >= 64) { + const tableentry* te = &tab[63 + (span>>6)]; + assert(te->runlen == 64*(span>>6)); + code = te->code, length = te->length; +#ifdef FAX3_DEBUG + DEBUG_PRINT("MakeUp", te->runlen); +#endif + _PutBits(tif, code, length); + span -= te->runlen; + } + code = tab[span].code, length = tab[span].length; +#ifdef FAX3_DEBUG + DEBUG_PRINT(" Term", tab[span].runlen); +#endif + _PutBits(tif, code, length); + + sp->data = data; + sp->bit = bit; +} + +/* + * Write an EOL code to the output stream. The zero-fill + * logic for byte-aligning encoded scanlines is handled + * here. We also handle writing the tag bit for the next + * scanline when doing 2d encoding. + */ +static void +Fax3PutEOL(TIFF* tif) +{ + Fax3CodecState* sp = EncoderState(tif); + unsigned int bit = sp->bit; + int data = sp->data; + unsigned int code, length, tparm; + + if (sp->b.groupoptions & GROUP3OPT_FILLBITS) { + /* + * Force bit alignment so EOL will terminate on + * a byte boundary. That is, force the bit alignment + * to 16-12 = 4 before putting out the EOL code. + */ + int align = 8 - 4; + if (align != sp->bit) { + if (align > sp->bit) + align = sp->bit + (8 - align); + else + align = sp->bit - align; + code = 0; + tparm=align; + _PutBits(tif, 0, tparm); + } + } + code = EOL, length = 12; + if (is2DEncoding(sp)) + code = (code<<1) | (sp->tag == G3_1D), length++; + _PutBits(tif, code, length); + + sp->data = data; + sp->bit = bit; +} + +/* + * Reset encoding state at the start of a strip. + */ +static int +Fax3PreEncode(TIFF* tif, tsample_t s) +{ + Fax3CodecState* sp = EncoderState(tif); + + (void) s; + assert(sp != NULL); + sp->bit = 8; + sp->data = 0; + sp->tag = G3_1D; + /* + * This is necessary for Group 4; otherwise it isn't + * needed because the first scanline of each strip ends + * up being copied into the refline. + */ + if (sp->refline) + _TIFFmemset(sp->refline, 0x00, sp->b.rowbytes); + if (is2DEncoding(sp)) { + float res = tif->tif_dir.td_yresolution; + /* + * The CCITT spec says that when doing 2d encoding, you + * should only do it on K consecutive scanlines, where K + * depends on the resolution of the image being encoded + * (2 for <= 200 lpi, 4 for > 200 lpi). Since the directory + * code initializes td_yresolution to 0, this code will + * select a K of 2 unless the YResolution tag is set + * appropriately. (Note also that we fudge a little here + * and use 150 lpi to avoid problems with units conversion.) + */ + if (tif->tif_dir.td_resolutionunit == RESUNIT_CENTIMETER) + res *= 2.54f; /* convert to inches */ + sp->maxk = (res > 150 ? 4 : 2); + sp->k = sp->maxk-1; + } else + sp->k = sp->maxk = 0; + sp->line = 0; + return (1); +} + +static const unsigned char zeroruns[256] = { + 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, /* 0x00 - 0x0f */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x10 - 0x1f */ + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0x20 - 0x2f */ + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0x30 - 0x3f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x40 - 0x4f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x50 - 0x5f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x60 - 0x6f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x70 - 0x7f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 - 0x8f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 - 0x9f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 - 0xaf */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 - 0xbf */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 - 0xcf */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 - 0xdf */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 - 0xef */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xf0 - 0xff */ +}; +static const unsigned char oneruns[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 - 0x0f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 - 0x1f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 - 0x2f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x30 - 0x3f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x40 - 0x4f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 - 0x5f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60 - 0x6f */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 - 0x7f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x80 - 0x8f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x90 - 0x9f */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0xa0 - 0xaf */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0xb0 - 0xbf */ + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0xc0 - 0xcf */ + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0xd0 - 0xdf */ + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xe0 - 0xef */ + 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 8, /* 0xf0 - 0xff */ +}; + +/* + * On certain systems it pays to inline + * the routines that find pixel spans. + */ +#ifdef VAXC +static int32 find0span(unsigned char*, int32, int32); +static int32 find1span(unsigned char*, int32, int32); +#pragma inline(find0span,find1span) +#endif + +/* + * Find a span of ones or zeros using the supplied + * table. The ``base'' of the bit string is supplied + * along with the start+end bit indices. + */ +static int32 +find0span(unsigned char* bp, int32 bs, int32 be) +{ + int32 bits = be - bs; + int32 n, span; + + bp += bs>>3; + /* + * Check partial byte on lhs. + */ + if (bits > 0 && (n = (bs & 7))) { + span = zeroruns[(*bp << n) & 0xff]; + if (span > 8-n) /* table value too generous */ + span = 8-n; + if (span > bits) /* constrain span to bit range */ + span = bits; + if (n+span < 8) /* doesn't extend to edge of byte */ + return (span); + bits -= span; + bp++; + } else + span = 0; + if (bits >= (int32)(2 * 8 * sizeof(long))) { + long* lp; + /* + * Align to longword boundary and check longwords. + */ + while (!isAligned(bp, long)) { + if (*bp != 0x00) + return (span + zeroruns[*bp]); + span += 8, bits -= 8; + bp++; + } + lp = (long*) bp; + while ((bits >= (int32)(8 * sizeof(long))) && (0 == *lp)) { + span += 8*sizeof (long), bits -= 8*sizeof (long); + lp++; + } + bp = (unsigned char*) lp; + } + /* + * Scan full bytes for all 0's. + */ + while (bits >= 8) { + if (*bp != 0x00) /* end of run */ + return (span + zeroruns[*bp]); + span += 8, bits -= 8; + bp++; + } + /* + * Check partial byte on rhs. + */ + if (bits > 0) { + n = zeroruns[*bp]; + span += (n > bits ? bits : n); + } + return (span); +} + +static int32 +find1span(unsigned char* bp, int32 bs, int32 be) +{ + int32 bits = be - bs; + int32 n, span; + + bp += bs>>3; + /* + * Check partial byte on lhs. + */ + if (bits > 0 && (n = (bs & 7))) { + span = oneruns[(*bp << n) & 0xff]; + if (span > 8-n) /* table value too generous */ + span = 8-n; + if (span > bits) /* constrain span to bit range */ + span = bits; + if (n+span < 8) /* doesn't extend to edge of byte */ + return (span); + bits -= span; + bp++; + } else + span = 0; + if (bits >= (int32)(2 * 8 * sizeof(long))) { + long* lp; + /* + * Align to longword boundary and check longwords. + */ + while (!isAligned(bp, long)) { + if (*bp != 0xff) + return (span + oneruns[*bp]); + span += 8, bits -= 8; + bp++; + } + lp = (long*) bp; + while ((bits >= (int32)(8 * sizeof(long))) && (~0 == *lp)) { + span += 8*sizeof (long), bits -= 8*sizeof (long); + lp++; + } + bp = (unsigned char*) lp; + } + /* + * Scan full bytes for all 1's. + */ + while (bits >= 8) { + if (*bp != 0xff) /* end of run */ + return (span + oneruns[*bp]); + span += 8, bits -= 8; + bp++; + } + /* + * Check partial byte on rhs. + */ + if (bits > 0) { + n = oneruns[*bp]; + span += (n > bits ? bits : n); + } + return (span); +} + +/* + * Return the offset of the next bit in the range + * [bs..be] that is different from the specified + * color. The end, be, is returned if no such bit + * exists. + */ +#define finddiff(_cp, _bs, _be, _color) \ + (_bs + (_color ? find1span(_cp,_bs,_be) : find0span(_cp,_bs,_be))) +/* + * Like finddiff, but also check the starting bit + * against the end in case start > end. + */ +#define finddiff2(_cp, _bs, _be, _color) \ + (_bs < _be ? finddiff(_cp,_bs,_be,_color) : _be) + +/* + * 1d-encode a row of pixels. The encoding is + * a sequence of all-white or all-black spans + * of pixels encoded with Huffman codes. + */ +static int +Fax3Encode1DRow(TIFF* tif, unsigned char* bp, uint32 bits) +{ + Fax3CodecState* sp = EncoderState(tif); + int32 span; + uint32 bs = 0; + + for (;;) { + span = find0span(bp, bs, bits); /* white span */ + putspan(tif, span, TIFFFaxWhiteCodes); + bs += span; + if (bs >= bits) + break; + span = find1span(bp, bs, bits); /* black span */ + putspan(tif, span, TIFFFaxBlackCodes); + bs += span; + if (bs >= bits) + break; + } + if (sp->b.mode & (FAXMODE_BYTEALIGN|FAXMODE_WORDALIGN)) { + if (sp->bit != 8) /* byte-align */ + Fax3FlushBits(tif, sp); + if ((sp->b.mode&FAXMODE_WORDALIGN) && + !isAligned(tif->tif_rawcp, uint16)) + Fax3FlushBits(tif, sp); + } + return (1); +} + +static const tableentry horizcode = + { 3, 0x1, 0 }; /* 001 */ +static const tableentry passcode = + { 4, 0x1, 0 }; /* 0001 */ +static const tableentry vcodes[7] = { + { 7, 0x03, 0 }, /* 0000 011 */ + { 6, 0x03, 0 }, /* 0000 11 */ + { 3, 0x03, 0 }, /* 011 */ + { 1, 0x1, 0 }, /* 1 */ + { 3, 0x2, 0 }, /* 010 */ + { 6, 0x02, 0 }, /* 0000 10 */ + { 7, 0x02, 0 } /* 0000 010 */ +}; + +/* + * 2d-encode a row of pixels. Consult the CCITT + * documentation for the algorithm. + */ +static int +Fax3Encode2DRow(TIFF* tif, unsigned char* bp, unsigned char* rp, uint32 bits) +{ +#define PIXEL(buf,ix) ((((buf)[(ix)>>3]) >> (7-((ix)&7))) & 1) + uint32 a0 = 0; + uint32 a1 = (PIXEL(bp, 0) != 0 ? 0 : finddiff(bp, 0, bits, 0)); + uint32 b1 = (PIXEL(rp, 0) != 0 ? 0 : finddiff(rp, 0, bits, 0)); + uint32 a2, b2; + + for (;;) { + b2 = finddiff2(rp, b1, bits, PIXEL(rp,b1)); + if (b2 >= a1) { + int32 d = b1 - a1; + if (!(-3 <= d && d <= 3)) { /* horizontal mode */ + a2 = finddiff2(bp, a1, bits, PIXEL(bp,a1)); + putcode(tif, &horizcode); + if (a0+a1 == 0 || PIXEL(bp, a0) == 0) { + putspan(tif, a1-a0, TIFFFaxWhiteCodes); + putspan(tif, a2-a1, TIFFFaxBlackCodes); + } else { + putspan(tif, a1-a0, TIFFFaxBlackCodes); + putspan(tif, a2-a1, TIFFFaxWhiteCodes); + } + a0 = a2; + } else { /* vertical mode */ + putcode(tif, &vcodes[d+3]); + a0 = a1; + } + } else { /* pass mode */ + putcode(tif, &passcode); + a0 = b2; + } + if (a0 >= bits) + break; + a1 = finddiff(bp, a0, bits, PIXEL(bp,a0)); + b1 = finddiff(rp, a0, bits, !PIXEL(bp,a0)); + b1 = finddiff(rp, b1, bits, PIXEL(bp,a0)); + } + return (1); +#undef PIXEL +} + +/* + * Encode a buffer of pixels. + */ +static int +Fax3Encode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + Fax3CodecState* sp = EncoderState(tif); + + (void) s; + while ((long)cc > 0) { + if ((sp->b.mode & FAXMODE_NOEOL) == 0) + Fax3PutEOL(tif); + if (is2DEncoding(sp)) { + if (sp->tag == G3_1D) { + if (!Fax3Encode1DRow(tif, bp, sp->b.rowpixels)) + return (0); + sp->tag = G3_2D; + } else { + if (!Fax3Encode2DRow(tif, bp, sp->refline, + sp->b.rowpixels)) + return (0); + sp->k--; + } + if (sp->k == 0) { + sp->tag = G3_1D; + sp->k = sp->maxk-1; + } else + _TIFFmemcpy(sp->refline, bp, sp->b.rowbytes); + } else { + if (!Fax3Encode1DRow(tif, bp, sp->b.rowpixels)) + return (0); + } + bp += sp->b.rowbytes; + cc -= sp->b.rowbytes; + } + return (1); +} + +static int +Fax3PostEncode(TIFF* tif) +{ + Fax3CodecState* sp = EncoderState(tif); + + if (sp->bit != 8) + Fax3FlushBits(tif, sp); + return (1); +} + +static void +Fax3Close(TIFF* tif) +{ + if ((Fax3State(tif)->mode & FAXMODE_NORTC) == 0) { + Fax3CodecState* sp = EncoderState(tif); + unsigned int code = EOL; + unsigned int length = 12; + int i; + + if (is2DEncoding(sp)) + code = (code<<1) | (sp->tag == G3_1D), length++; + for (i = 0; i < 6; i++) + Fax3PutBits(tif, code, length); + Fax3FlushBits(tif, sp); + } +} + +static void +Fax3Cleanup(TIFF* tif) +{ + Fax3CodecState* sp = DecoderState(tif); + + assert(sp != 0); + + tif->tif_tagmethods.vgetfield = sp->b.vgetparent; + tif->tif_tagmethods.vsetfield = sp->b.vsetparent; + tif->tif_tagmethods.printdir = sp->b.printdir; + + if (sp->runs) + _TIFFfree(sp->runs); + if (sp->refline) + _TIFFfree(sp->refline); + + if (Fax3State(tif)->subaddress) + _TIFFfree(Fax3State(tif)->subaddress); + if (Fax3State(tif)->faxdcs) + _TIFFfree(Fax3State(tif)->faxdcs); + + _TIFFfree(tif->tif_data); + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +#define FIELD_BADFAXLINES (FIELD_CODEC+0) +#define FIELD_CLEANFAXDATA (FIELD_CODEC+1) +#define FIELD_BADFAXRUN (FIELD_CODEC+2) +#define FIELD_RECVPARAMS (FIELD_CODEC+3) +#define FIELD_SUBADDRESS (FIELD_CODEC+4) +#define FIELD_RECVTIME (FIELD_CODEC+5) +#define FIELD_FAXDCS (FIELD_CODEC+6) + +#define FIELD_OPTIONS (FIELD_CODEC+7) + +static const TIFFFieldInfo faxFieldInfo[] = { + { TIFFTAG_FAXMODE, 0, 0, TIFF_ANY, FIELD_PSEUDO, + FALSE, FALSE, "FaxMode" }, + { TIFFTAG_FAXFILLFUNC, 0, 0, TIFF_ANY, FIELD_PSEUDO, + FALSE, FALSE, "FaxFillFunc" }, + { TIFFTAG_BADFAXLINES, 1, 1, TIFF_LONG, FIELD_BADFAXLINES, + TRUE, FALSE, "BadFaxLines" }, + { TIFFTAG_BADFAXLINES, 1, 1, TIFF_SHORT, FIELD_BADFAXLINES, + TRUE, FALSE, "BadFaxLines" }, + { TIFFTAG_CLEANFAXDATA, 1, 1, TIFF_SHORT, FIELD_CLEANFAXDATA, + TRUE, FALSE, "CleanFaxData" }, + { TIFFTAG_CONSECUTIVEBADFAXLINES,1,1, TIFF_LONG, FIELD_BADFAXRUN, + TRUE, FALSE, "ConsecutiveBadFaxLines" }, + { TIFFTAG_CONSECUTIVEBADFAXLINES,1,1, TIFF_SHORT, FIELD_BADFAXRUN, + TRUE, FALSE, "ConsecutiveBadFaxLines" }, + { TIFFTAG_FAXRECVPARAMS, 1, 1, TIFF_LONG, FIELD_RECVPARAMS, + TRUE, FALSE, "FaxRecvParams" }, + { TIFFTAG_FAXSUBADDRESS, -1,-1, TIFF_ASCII, FIELD_SUBADDRESS, + TRUE, FALSE, "FaxSubAddress" }, + { TIFFTAG_FAXRECVTIME, 1, 1, TIFF_LONG, FIELD_RECVTIME, + TRUE, FALSE, "FaxRecvTime" }, + { TIFFTAG_FAXDCS, -1,-1, TIFF_ASCII, FIELD_FAXDCS, + TRUE, FALSE, "FaxDcs" }, +}; +static const TIFFFieldInfo fax3FieldInfo[] = { + { TIFFTAG_GROUP3OPTIONS, 1, 1, TIFF_LONG, FIELD_OPTIONS, + FALSE, FALSE, "Group3Options" }, +}; +static const TIFFFieldInfo fax4FieldInfo[] = { + { TIFFTAG_GROUP4OPTIONS, 1, 1, TIFF_LONG, FIELD_OPTIONS, + FALSE, FALSE, "Group4Options" }, +}; +#define N(a) (sizeof (a) / sizeof (a[0])) + +static int +Fax3VSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + Fax3BaseState* sp = Fax3State(tif); + const TIFFFieldInfo* fip; + + assert(sp != 0); + assert(sp->vsetparent != 0); + + switch (tag) { + case TIFFTAG_FAXMODE: + sp->mode = va_arg(ap, int); + return 1; /* NB: pseudo tag */ + case TIFFTAG_FAXFILLFUNC: + DecoderState(tif)->fill = va_arg(ap, TIFFFaxFillFunc); + return 1; /* NB: pseudo tag */ + case TIFFTAG_GROUP3OPTIONS: + /* XXX: avoid reading options if compression mismatches. */ + if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX3) + sp->groupoptions = va_arg(ap, uint32); + break; + case TIFFTAG_GROUP4OPTIONS: + /* XXX: avoid reading options if compression mismatches. */ + if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX4) + sp->groupoptions = va_arg(ap, uint32); + break; + case TIFFTAG_BADFAXLINES: + sp->badfaxlines = va_arg(ap, uint32); + break; + case TIFFTAG_CLEANFAXDATA: + sp->cleanfaxdata = (uint16) va_arg(ap, int); + break; + case TIFFTAG_CONSECUTIVEBADFAXLINES: + sp->badfaxrun = va_arg(ap, uint32); + break; + case TIFFTAG_FAXRECVPARAMS: + sp->recvparams = va_arg(ap, uint32); + break; + case TIFFTAG_FAXSUBADDRESS: + _TIFFsetString(&sp->subaddress, va_arg(ap, char*)); + break; + case TIFFTAG_FAXRECVTIME: + sp->recvtime = va_arg(ap, uint32); + break; + case TIFFTAG_FAXDCS: + _TIFFsetString(&sp->faxdcs, va_arg(ap, char*)); + break; + default: + return (*sp->vsetparent)(tif, tag, ap); + } + + if ((fip = _TIFFFieldWithTag(tif, tag))) + TIFFSetFieldBit(tif, fip->field_bit); + else + return 0; + + tif->tif_flags |= TIFF_DIRTYDIRECT; + return 1; +} + +static int +Fax3VGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + Fax3BaseState* sp = Fax3State(tif); + + assert(sp != 0); + + switch (tag) { + case TIFFTAG_FAXMODE: + *va_arg(ap, int*) = sp->mode; + break; + case TIFFTAG_FAXFILLFUNC: + *va_arg(ap, TIFFFaxFillFunc*) = DecoderState(tif)->fill; + break; + case TIFFTAG_GROUP3OPTIONS: + case TIFFTAG_GROUP4OPTIONS: + *va_arg(ap, uint32*) = sp->groupoptions; + break; + case TIFFTAG_BADFAXLINES: + *va_arg(ap, uint32*) = sp->badfaxlines; + break; + case TIFFTAG_CLEANFAXDATA: + *va_arg(ap, uint16*) = sp->cleanfaxdata; + break; + case TIFFTAG_CONSECUTIVEBADFAXLINES: + *va_arg(ap, uint32*) = sp->badfaxrun; + break; + case TIFFTAG_FAXRECVPARAMS: + *va_arg(ap, uint32*) = sp->recvparams; + break; + case TIFFTAG_FAXSUBADDRESS: + *va_arg(ap, char**) = sp->subaddress; + break; + case TIFFTAG_FAXRECVTIME: + *va_arg(ap, uint32*) = sp->recvtime; + break; + case TIFFTAG_FAXDCS: + *va_arg(ap, char**) = sp->faxdcs; + break; + default: + return (*sp->vgetparent)(tif, tag, ap); + } + return (1); +} + +static void +Fax3PrintDir(TIFF* tif, FILE* fd, long flags) +{ + Fax3BaseState* sp = Fax3State(tif); + + assert(sp != 0); + + (void) flags; + if (TIFFFieldSet(tif,FIELD_OPTIONS)) { + const char* sep = " "; + if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX4) { + fprintf(fd, " Group 4 Options:"); + if (sp->groupoptions & GROUP4OPT_UNCOMPRESSED) + fprintf(fd, "%suncompressed data", sep); + } else { + + fprintf(fd, " Group 3 Options:"); + if (sp->groupoptions & GROUP3OPT_2DENCODING) + fprintf(fd, "%s2-d encoding", sep), sep = "+"; + if (sp->groupoptions & GROUP3OPT_FILLBITS) + fprintf(fd, "%sEOL padding", sep), sep = "+"; + if (sp->groupoptions & GROUP3OPT_UNCOMPRESSED) + fprintf(fd, "%suncompressed data", sep); + } + fprintf(fd, " (%lu = 0x%lx)\n", + (unsigned long) sp->groupoptions, + (unsigned long) sp->groupoptions); + } + if (TIFFFieldSet(tif,FIELD_CLEANFAXDATA)) { + fprintf(fd, " Fax Data:"); + switch (sp->cleanfaxdata) { + case CLEANFAXDATA_CLEAN: + fprintf(fd, " clean"); + break; + case CLEANFAXDATA_REGENERATED: + fprintf(fd, " receiver regenerated"); + break; + case CLEANFAXDATA_UNCLEAN: + fprintf(fd, " uncorrected errors"); + break; + } + fprintf(fd, " (%u = 0x%x)\n", + sp->cleanfaxdata, sp->cleanfaxdata); + } + if (TIFFFieldSet(tif,FIELD_BADFAXLINES)) + fprintf(fd, " Bad Fax Lines: %lu\n", + (unsigned long) sp->badfaxlines); + if (TIFFFieldSet(tif,FIELD_BADFAXRUN)) + fprintf(fd, " Consecutive Bad Fax Lines: %lu\n", + (unsigned long) sp->badfaxrun); + if (TIFFFieldSet(tif,FIELD_RECVPARAMS)) + fprintf(fd, " Fax Receive Parameters: %08lx\n", + (unsigned long) sp->recvparams); + if (TIFFFieldSet(tif,FIELD_SUBADDRESS)) + fprintf(fd, " Fax SubAddress: %s\n", sp->subaddress); + if (TIFFFieldSet(tif,FIELD_RECVTIME)) + fprintf(fd, " Fax Receive Time: %lu secs\n", + (unsigned long) sp->recvtime); + if (TIFFFieldSet(tif,FIELD_FAXDCS)) + fprintf(fd, " Fax DCS: %s\n", sp->faxdcs); +} + +static int +InitCCITTFax3(TIFF* tif) +{ + Fax3BaseState* sp; + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, faxFieldInfo, N(faxFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "InitCCITTFax3", + "Merging common CCITT Fax codec-specific tags failed"); + return 0; + } + + /* + * Allocate state block so tag methods have storage to record values. + */ + tif->tif_data = (tidata_t) + _TIFFmalloc(sizeof (Fax3CodecState)); + + if (tif->tif_data == NULL) { + TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax3", + "%s: No space for state block", tif->tif_name); + return (0); + } + + sp = Fax3State(tif); + sp->rw_mode = tif->tif_mode; + + /* + * Override parent get/set field methods. + */ + sp->vgetparent = tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield = Fax3VGetField; /* hook for codec tags */ + sp->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield = Fax3VSetField; /* hook for codec tags */ + sp->printdir = tif->tif_tagmethods.printdir; + tif->tif_tagmethods.printdir = Fax3PrintDir; /* hook for codec tags */ + sp->groupoptions = 0; + sp->recvparams = 0; + sp->subaddress = NULL; + sp->faxdcs = NULL; + + if (sp->rw_mode == O_RDONLY) /* FIXME: improve for in place update */ + tif->tif_flags |= TIFF_NOBITREV; /* decoder does bit reversal */ + DecoderState(tif)->runs = NULL; + TIFFSetField(tif, TIFFTAG_FAXFILLFUNC, _TIFFFax3fillruns); + EncoderState(tif)->refline = NULL; + + /* + * Install codec methods. + */ + tif->tif_setupdecode = Fax3SetupState; + tif->tif_predecode = Fax3PreDecode; + tif->tif_decoderow = Fax3Decode1D; + tif->tif_decodestrip = Fax3Decode1D; + tif->tif_decodetile = Fax3Decode1D; + tif->tif_setupencode = Fax3SetupState; + tif->tif_preencode = Fax3PreEncode; + tif->tif_postencode = Fax3PostEncode; + tif->tif_encoderow = Fax3Encode; + tif->tif_encodestrip = Fax3Encode; + tif->tif_encodetile = Fax3Encode; + tif->tif_close = Fax3Close; + tif->tif_cleanup = Fax3Cleanup; + + return (1); +} + +int +TIFFInitCCITTFax3(TIFF* tif, int scheme) +{ + (void) scheme; + if (InitCCITTFax3(tif)) { + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, fax3FieldInfo, N(fax3FieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax3", + "Merging CCITT Fax 3 codec-specific tags failed"); + return 0; + } + + /* + * The default format is Class/F-style w/o RTC. + */ + return TIFFSetField(tif, TIFFTAG_FAXMODE, FAXMODE_CLASSF); + } else + return 01; +} + +/* + * CCITT Group 4 (T.6) Facsimile-compatible + * Compression Scheme Support. + */ + +#define SWAP(t,a,b) { t x; x = (a); (a) = (b); (b) = x; } +/* + * Decode the requested amount of G4-encoded data. + */ +static int +Fax4Decode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +{ + DECLARE_STATE_2D(tif, sp, "Fax4Decode"); + + (void) s; + CACHE_STATE(tif, sp); + while ((long)occ > 0) { + a0 = 0; + RunLength = 0; + pa = thisrun = sp->curruns; + pb = sp->refruns; + b1 = *pb++; +#ifdef FAX3_DEBUG + printf("\nBitAcc=%08X, BitsAvail = %d\n", BitAcc, BitsAvail); + printf("-------------------- %d\n", tif->tif_row); + fflush(stdout); +#endif + EXPAND2D(EOFG4); + if (EOLcnt) + goto EOFG4; + (*sp->fill)(buf, thisrun, pa, lastx); + SETVALUE(0); /* imaginary change for reference */ + SWAP(uint32*, sp->curruns, sp->refruns); + buf += sp->b.rowbytes; + occ -= sp->b.rowbytes; + sp->line++; + continue; + EOFG4: + NeedBits16( 13, BADG4 ); + BADG4: +#ifdef FAX3_DEBUG + if( GetBits(13) != 0x1001 ) + fputs( "Bad EOFB\n", stderr ); +#endif + ClrBits( 13 ); + (*sp->fill)(buf, thisrun, pa, lastx); + UNCACHE_STATE(tif, sp); + return ( sp->line ? 1 : -1); /* don't error on badly-terminated strips */ + } + UNCACHE_STATE(tif, sp); + return (1); +} +#undef SWAP + +/* + * Encode the requested amount of data. + */ +static int +Fax4Encode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + Fax3CodecState *sp = EncoderState(tif); + + (void) s; + while ((long)cc > 0) { + if (!Fax3Encode2DRow(tif, bp, sp->refline, sp->b.rowpixels)) + return (0); + _TIFFmemcpy(sp->refline, bp, sp->b.rowbytes); + bp += sp->b.rowbytes; + cc -= sp->b.rowbytes; + } + return (1); +} + +static int +Fax4PostEncode(TIFF* tif) +{ + Fax3CodecState *sp = EncoderState(tif); + + /* terminate strip w/ EOFB */ + Fax3PutBits(tif, EOL, 12); + Fax3PutBits(tif, EOL, 12); + if (sp->bit != 8) + Fax3FlushBits(tif, sp); + return (1); +} + +int +TIFFInitCCITTFax4(TIFF* tif, int scheme) +{ + (void) scheme; + if (InitCCITTFax3(tif)) { /* reuse G3 support */ + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, fax4FieldInfo, N(fax4FieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax4", + "Merging CCITT Fax 4 codec-specific tags failed"); + return 0; + } + + tif->tif_decoderow = Fax4Decode; + tif->tif_decodestrip = Fax4Decode; + tif->tif_decodetile = Fax4Decode; + tif->tif_encoderow = Fax4Encode; + tif->tif_encodestrip = Fax4Encode; + tif->tif_encodetile = Fax4Encode; + tif->tif_postencode = Fax4PostEncode; + /* + * Suppress RTC at the end of each strip. + */ + return TIFFSetField(tif, TIFFTAG_FAXMODE, FAXMODE_NORTC); + } else + return (0); +} + +/* + * CCITT Group 3 1-D Modified Huffman RLE Compression Support. + * (Compression algorithms 2 and 32771) + */ + +/* + * Decode the requested amount of RLE-encoded data. + */ +static int +Fax3DecodeRLE(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +{ + DECLARE_STATE(tif, sp, "Fax3DecodeRLE"); + int mode = sp->b.mode; + + (void) s; + CACHE_STATE(tif, sp); + thisrun = sp->curruns; + while ((long)occ > 0) { + a0 = 0; + RunLength = 0; + pa = thisrun; +#ifdef FAX3_DEBUG + printf("\nBitAcc=%08X, BitsAvail = %d\n", BitAcc, BitsAvail); + printf("-------------------- %d\n", tif->tif_row); + fflush(stdout); +#endif + EXPAND1D(EOFRLE); + (*sp->fill)(buf, thisrun, pa, lastx); + /* + * Cleanup at the end of the row. + */ + if (mode & FAXMODE_BYTEALIGN) { + int n = BitsAvail - (BitsAvail &~ 7); + ClrBits(n); + } else if (mode & FAXMODE_WORDALIGN) { + int n = BitsAvail - (BitsAvail &~ 15); + ClrBits(n); + if (BitsAvail == 0 && !isAligned(cp, uint16)) + cp++; + } + buf += sp->b.rowbytes; + occ -= sp->b.rowbytes; + sp->line++; + continue; + EOFRLE: /* premature EOF */ + (*sp->fill)(buf, thisrun, pa, lastx); + UNCACHE_STATE(tif, sp); + return (-1); + } + UNCACHE_STATE(tif, sp); + return (1); +} + +int +TIFFInitCCITTRLE(TIFF* tif, int scheme) +{ + (void) scheme; + if (InitCCITTFax3(tif)) { /* reuse G3 support */ + tif->tif_decoderow = Fax3DecodeRLE; + tif->tif_decodestrip = Fax3DecodeRLE; + tif->tif_decodetile = Fax3DecodeRLE; + /* + * Suppress RTC+EOLs when encoding and byte-align data. + */ + return TIFFSetField(tif, TIFFTAG_FAXMODE, + FAXMODE_NORTC|FAXMODE_NOEOL|FAXMODE_BYTEALIGN); + } else + return (0); +} + +int +TIFFInitCCITTRLEW(TIFF* tif, int scheme) +{ + (void) scheme; + if (InitCCITTFax3(tif)) { /* reuse G3 support */ + tif->tif_decoderow = Fax3DecodeRLE; + tif->tif_decodestrip = Fax3DecodeRLE; + tif->tif_decodetile = Fax3DecodeRLE; + /* + * Suppress RTC+EOLs when encoding and word-align data. + */ + return TIFFSetField(tif, TIFFTAG_FAXMODE, + FAXMODE_NORTC|FAXMODE_NOEOL|FAXMODE_WORDALIGN); + } else + return (0); +} +#endif /* CCITT_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_fax3.h b/tiff/libtiff/tif_fax3.h new file mode 100644 index 0000000..40718bc --- /dev/null +++ b/tiff/libtiff/tif_fax3.h @@ -0,0 +1,532 @@ +/* $Id: tif_fax3.h,v 1.5.2.1 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1990-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _FAX3_ +#define _FAX3_ +/* + * TIFF Library. + * + * CCITT Group 3 (T.4) and Group 4 (T.6) Decompression Support. + * + * Decoder support is derived, with permission, from the code + * in Frank Cringle's viewfax program; + * Copyright (C) 1990, 1995 Frank D. Cringle. + */ +#include "tiff.h" + +/* + * To override the default routine used to image decoded + * spans one can use the pseduo tag TIFFTAG_FAXFILLFUNC. + * The routine must have the type signature given below; + * for example: + * + * fillruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx) + * + * where buf is place to set the bits, runs is the array of b&w run + * lengths (white then black), erun is the last run in the array, and + * lastx is the width of the row in pixels. Fill routines can assume + * the run array has room for at least lastx runs and can overwrite + * data in the run array as needed (e.g. to append zero runs to bring + * the count up to a nice multiple). + */ +typedef void (*TIFFFaxFillFunc)(unsigned char*, uint32*, uint32*, uint32); + +/* + * The default run filler; made external for other decoders. + */ +#if defined(__cplusplus) +extern "C" { +#endif +extern void _TIFFFax3fillruns(unsigned char*, uint32*, uint32*, uint32); +#if defined(__cplusplus) +} +#endif + + +/* finite state machine codes */ +#define S_Null 0 +#define S_Pass 1 +#define S_Horiz 2 +#define S_V0 3 +#define S_VR 4 +#define S_VL 5 +#define S_Ext 6 +#define S_TermW 7 +#define S_TermB 8 +#define S_MakeUpW 9 +#define S_MakeUpB 10 +#define S_MakeUp 11 +#define S_EOL 12 + +typedef struct { /* state table entry */ + unsigned char State; /* see above */ + unsigned char Width; /* width of code in bits */ + uint32 Param; /* unsigned 32-bit run length in bits */ +} TIFFFaxTabEnt; + +extern const TIFFFaxTabEnt TIFFFaxMainTable[]; +extern const TIFFFaxTabEnt TIFFFaxWhiteTable[]; +extern const TIFFFaxTabEnt TIFFFaxBlackTable[]; + +/* + * The following macros define the majority of the G3/G4 decoder + * algorithm using the state tables defined elsewhere. To build + * a decoder you need some setup code and some glue code. Note + * that you may also need/want to change the way the NeedBits* + * macros get input data if, for example, you know the data to be + * decoded is properly aligned and oriented (doing so before running + * the decoder can be a big performance win). + * + * Consult the decoder in the TIFF library for an idea of what you + * need to define and setup to make use of these definitions. + * + * NB: to enable a debugging version of these macros define FAX3_DEBUG + * before including this file. Trace output goes to stdout. + */ + +#ifndef EndOfData +#define EndOfData() (cp >= ep) +#endif +/* + * Need <=8 or <=16 bits of input data. Unlike viewfax we + * cannot use/assume a word-aligned, properly bit swizzled + * input data set because data may come from an arbitrarily + * aligned, read-only source such as a memory-mapped file. + * Note also that the viewfax decoder does not check for + * running off the end of the input data buffer. This is + * possible for G3-encoded data because it prescans the input + * data to count EOL markers, but can cause problems for G4 + * data. In any event, we don't prescan and must watch for + * running out of data since we can't permit the library to + * scan past the end of the input data buffer. + * + * Finally, note that we must handle remaindered data at the end + * of a strip specially. The coder asks for a fixed number of + * bits when scanning for the next code. This may be more bits + * than are actually present in the data stream. If we appear + * to run out of data but still have some number of valid bits + * remaining then we makeup the requested amount with zeros and + * return successfully. If the returned data is incorrect then + * we should be called again and get a premature EOF error; + * otherwise we should get the right answer. + */ +#ifndef NeedBits8 +#define NeedBits8(n,eoflab) do { \ + if (BitsAvail < (n)) { \ + if (EndOfData()) { \ + if (BitsAvail == 0) /* no valid bits */ \ + goto eoflab; \ + BitsAvail = (n); /* pad with zeros */ \ + } else { \ + BitAcc |= ((uint32) bitmap[*cp++])<<BitsAvail; \ + BitsAvail += 8; \ + } \ + } \ +} while (0) +#endif +#ifndef NeedBits16 +#define NeedBits16(n,eoflab) do { \ + if (BitsAvail < (n)) { \ + if (EndOfData()) { \ + if (BitsAvail == 0) /* no valid bits */ \ + goto eoflab; \ + BitsAvail = (n); /* pad with zeros */ \ + } else { \ + BitAcc |= ((uint32) bitmap[*cp++])<<BitsAvail; \ + if ((BitsAvail += 8) < (n)) { \ + if (EndOfData()) { \ + /* NB: we know BitsAvail is non-zero here */ \ + BitsAvail = (n); /* pad with zeros */ \ + } else { \ + BitAcc |= ((uint32) bitmap[*cp++])<<BitsAvail; \ + BitsAvail += 8; \ + } \ + } \ + } \ + } \ +} while (0) +#endif +#define GetBits(n) (BitAcc & ((1<<(n))-1)) +#define ClrBits(n) do { \ + BitsAvail -= (n); \ + BitAcc >>= (n); \ +} while (0) + +#ifdef FAX3_DEBUG +static const char* StateNames[] = { + "Null ", + "Pass ", + "Horiz ", + "V0 ", + "VR ", + "VL ", + "Ext ", + "TermW ", + "TermB ", + "MakeUpW", + "MakeUpB", + "MakeUp ", + "EOL ", +}; +#define DEBUG_SHOW putchar(BitAcc & (1 << t) ? '1' : '0') +#define LOOKUP8(wid,tab,eoflab) do { \ + int t; \ + NeedBits8(wid,eoflab); \ + TabEnt = tab + GetBits(wid); \ + printf("%08lX/%d: %s%5d\t", (long) BitAcc, BitsAvail, \ + StateNames[TabEnt->State], TabEnt->Param); \ + for (t = 0; t < TabEnt->Width; t++) \ + DEBUG_SHOW; \ + putchar('\n'); \ + fflush(stdout); \ + ClrBits(TabEnt->Width); \ +} while (0) +#define LOOKUP16(wid,tab,eoflab) do { \ + int t; \ + NeedBits16(wid,eoflab); \ + TabEnt = tab + GetBits(wid); \ + printf("%08lX/%d: %s%5d\t", (long) BitAcc, BitsAvail, \ + StateNames[TabEnt->State], TabEnt->Param); \ + for (t = 0; t < TabEnt->Width; t++) \ + DEBUG_SHOW; \ + putchar('\n'); \ + fflush(stdout); \ + ClrBits(TabEnt->Width); \ +} while (0) + +#define SETVALUE(x) do { \ + *pa++ = RunLength + (x); \ + printf("SETVALUE: %d\t%d\n", RunLength + (x), a0); \ + a0 += x; \ + RunLength = 0; \ +} while (0) +#else +#define LOOKUP8(wid,tab,eoflab) do { \ + NeedBits8(wid,eoflab); \ + TabEnt = tab + GetBits(wid); \ + ClrBits(TabEnt->Width); \ +} while (0) +#define LOOKUP16(wid,tab,eoflab) do { \ + NeedBits16(wid,eoflab); \ + TabEnt = tab + GetBits(wid); \ + ClrBits(TabEnt->Width); \ +} while (0) + +/* + * Append a run to the run length array for the + * current row and reset decoding state. + */ +#define SETVALUE(x) do { \ + *pa++ = RunLength + (x); \ + a0 += (x); \ + RunLength = 0; \ +} while (0) +#endif + +/* + * Synchronize input decoding at the start of each + * row by scanning for an EOL (if appropriate) and + * skipping any trash data that might be present + * after a decoding error. Note that the decoding + * done elsewhere that recognizes an EOL only consumes + * 11 consecutive zero bits. This means that if EOLcnt + * is non-zero then we still need to scan for the final flag + * bit that is part of the EOL code. + */ +#define SYNC_EOL(eoflab) do { \ + if (EOLcnt == 0) { \ + for (;;) { \ + NeedBits16(11,eoflab); \ + if (GetBits(11) == 0) \ + break; \ + ClrBits(1); \ + } \ + } \ + for (;;) { \ + NeedBits8(8,eoflab); \ + if (GetBits(8)) \ + break; \ + ClrBits(8); \ + } \ + while (GetBits(1) == 0) \ + ClrBits(1); \ + ClrBits(1); /* EOL bit */ \ + EOLcnt = 0; /* reset EOL counter/flag */ \ +} while (0) + +/* + * Cleanup the array of runs after decoding a row. + * We adjust final runs to insure the user buffer is not + * overwritten and/or undecoded area is white filled. + */ +#define CLEANUP_RUNS() do { \ + if (RunLength) \ + SETVALUE(0); \ + if (a0 != lastx) { \ + badlength(a0, lastx); \ + while (a0 > lastx && pa > thisrun) \ + a0 -= *--pa; \ + if (a0 < lastx) { \ + if (a0 < 0) \ + a0 = 0; \ + if ((pa-thisrun)&1) \ + SETVALUE(0); \ + SETVALUE(lastx - a0); \ + } else if (a0 > lastx) { \ + SETVALUE(lastx); \ + SETVALUE(0); \ + } \ + } \ +} while (0) + +/* + * Decode a line of 1D-encoded data. + * + * The line expanders are written as macros so that they can be reused + * but still have direct access to the local variables of the "calling" + * function. + * + * Note that unlike the original version we have to explicitly test for + * a0 >= lastx after each black/white run is decoded. This is because + * the original code depended on the input data being zero-padded to + * insure the decoder recognized an EOL before running out of data. + */ +#define EXPAND1D(eoflab) do { \ + for (;;) { \ + for (;;) { \ + LOOKUP16(12, TIFFFaxWhiteTable, eof1d); \ + switch (TabEnt->State) { \ + case S_EOL: \ + EOLcnt = 1; \ + goto done1d; \ + case S_TermW: \ + SETVALUE(TabEnt->Param); \ + goto doneWhite1d; \ + case S_MakeUpW: \ + case S_MakeUp: \ + a0 += TabEnt->Param; \ + RunLength += TabEnt->Param; \ + break; \ + default: \ + unexpected("WhiteTable", a0); \ + goto done1d; \ + } \ + } \ + doneWhite1d: \ + if (a0 >= lastx) \ + goto done1d; \ + for (;;) { \ + LOOKUP16(13, TIFFFaxBlackTable, eof1d); \ + switch (TabEnt->State) { \ + case S_EOL: \ + EOLcnt = 1; \ + goto done1d; \ + case S_TermB: \ + SETVALUE(TabEnt->Param); \ + goto doneBlack1d; \ + case S_MakeUpB: \ + case S_MakeUp: \ + a0 += TabEnt->Param; \ + RunLength += TabEnt->Param; \ + break; \ + default: \ + unexpected("BlackTable", a0); \ + goto done1d; \ + } \ + } \ + doneBlack1d: \ + if (a0 >= lastx) \ + goto done1d; \ + if( *(pa-1) == 0 && *(pa-2) == 0 ) \ + pa -= 2; \ + } \ +eof1d: \ + prematureEOF(a0); \ + CLEANUP_RUNS(); \ + goto eoflab; \ +done1d: \ + CLEANUP_RUNS(); \ +} while (0) + +/* + * Update the value of b1 using the array + * of runs for the reference line. + */ +#define CHECK_b1 do { \ + if (pa != thisrun) while (b1 <= a0 && b1 < lastx) { \ + b1 += pb[0] + pb[1]; \ + pb += 2; \ + } \ +} while (0) + +/* + * Expand a row of 2D-encoded data. + */ +#define EXPAND2D(eoflab) do { \ + while (a0 < lastx) { \ + LOOKUP8(7, TIFFFaxMainTable, eof2d); \ + switch (TabEnt->State) { \ + case S_Pass: \ + CHECK_b1; \ + b1 += *pb++; \ + RunLength += b1 - a0; \ + a0 = b1; \ + b1 += *pb++; \ + break; \ + case S_Horiz: \ + if ((pa-thisrun)&1) { \ + for (;;) { /* black first */ \ + LOOKUP16(13, TIFFFaxBlackTable, eof2d); \ + switch (TabEnt->State) { \ + case S_TermB: \ + SETVALUE(TabEnt->Param); \ + goto doneWhite2da; \ + case S_MakeUpB: \ + case S_MakeUp: \ + a0 += TabEnt->Param; \ + RunLength += TabEnt->Param; \ + break; \ + default: \ + goto badBlack2d; \ + } \ + } \ + doneWhite2da:; \ + for (;;) { /* then white */ \ + LOOKUP16(12, TIFFFaxWhiteTable, eof2d); \ + switch (TabEnt->State) { \ + case S_TermW: \ + SETVALUE(TabEnt->Param); \ + goto doneBlack2da; \ + case S_MakeUpW: \ + case S_MakeUp: \ + a0 += TabEnt->Param; \ + RunLength += TabEnt->Param; \ + break; \ + default: \ + goto badWhite2d; \ + } \ + } \ + doneBlack2da:; \ + } else { \ + for (;;) { /* white first */ \ + LOOKUP16(12, TIFFFaxWhiteTable, eof2d); \ + switch (TabEnt->State) { \ + case S_TermW: \ + SETVALUE(TabEnt->Param); \ + goto doneWhite2db; \ + case S_MakeUpW: \ + case S_MakeUp: \ + a0 += TabEnt->Param; \ + RunLength += TabEnt->Param; \ + break; \ + default: \ + goto badWhite2d; \ + } \ + } \ + doneWhite2db:; \ + for (;;) { /* then black */ \ + LOOKUP16(13, TIFFFaxBlackTable, eof2d); \ + switch (TabEnt->State) { \ + case S_TermB: \ + SETVALUE(TabEnt->Param); \ + goto doneBlack2db; \ + case S_MakeUpB: \ + case S_MakeUp: \ + a0 += TabEnt->Param; \ + RunLength += TabEnt->Param; \ + break; \ + default: \ + goto badBlack2d; \ + } \ + } \ + doneBlack2db:; \ + } \ + CHECK_b1; \ + break; \ + case S_V0: \ + CHECK_b1; \ + SETVALUE(b1 - a0); \ + b1 += *pb++; \ + break; \ + case S_VR: \ + CHECK_b1; \ + SETVALUE(b1 - a0 + TabEnt->Param); \ + b1 += *pb++; \ + break; \ + case S_VL: \ + CHECK_b1; \ + SETVALUE(b1 - a0 - TabEnt->Param); \ + b1 -= *--pb; \ + break; \ + case S_Ext: \ + *pa++ = lastx - a0; \ + extension(a0); \ + goto eol2d; \ + case S_EOL: \ + *pa++ = lastx - a0; \ + NeedBits8(4,eof2d); \ + if (GetBits(4)) \ + unexpected("EOL", a0); \ + ClrBits(4); \ + EOLcnt = 1; \ + goto eol2d; \ + default: \ + badMain2d: \ + unexpected("MainTable", a0); \ + goto eol2d; \ + badBlack2d: \ + unexpected("BlackTable", a0); \ + goto eol2d; \ + badWhite2d: \ + unexpected("WhiteTable", a0); \ + goto eol2d; \ + eof2d: \ + prematureEOF(a0); \ + CLEANUP_RUNS(); \ + goto eoflab; \ + } \ + } \ + if (RunLength) { \ + if (RunLength + a0 < lastx) { \ + /* expect a final V0 */ \ + NeedBits8(1,eof2d); \ + if (!GetBits(1)) \ + goto badMain2d; \ + ClrBits(1); \ + } \ + SETVALUE(0); \ + } \ +eol2d: \ + CLEANUP_RUNS(); \ +} while (0) +#endif /* _FAX3_ */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_fax3sm.c b/tiff/libtiff/tif_fax3sm.c new file mode 100644 index 0000000..b2c6729 --- /dev/null +++ b/tiff/libtiff/tif_fax3sm.c @@ -0,0 +1,1253 @@ +/* WARNING, this file was automatically generated by the + mkg3states program */ +#include "tiff.h" +#include "tif_fax3.h" + const TIFFFaxTabEnt TIFFFaxMainTable[128] = { +12,7,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0,1,4,0,3,1,0, +5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0,5,6,2,3,1,0,5,3,1,3,1,0, +2,3,0,3,1,0,4,3,1,3,1,0,1,4,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0, +4,3,1,3,1,0,5,7,3,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0, +1,4,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0,4,6,2,3,1,0, +5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0,1,4,0,3,1,0,5,3,1,3,1,0, +2,3,0,3,1,0,4,3,1,3,1,0,6,7,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0, +4,3,1,3,1,0,1,4,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0, +5,6,2,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0,1,4,0,3,1,0, +5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0,4,7,3,3,1,0,5,3,1,3,1,0, +2,3,0,3,1,0,4,3,1,3,1,0,1,4,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0, +4,3,1,3,1,0,4,6,2,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0, +1,4,0,3,1,0,5,3,1,3,1,0,2,3,0,3,1,0,4,3,1,3,1,0 +}; + const TIFFFaxTabEnt TIFFFaxWhiteTable[4096] = { +12,11,0,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6,7,7,20,9,5,128, +7,7,24,7,6,14,7,7,28,7,4,4,7,4,2,7,4,7,7,7,23,7,4,3,7,7,27,7,4,5, +7,8,39,7,6,16,9,8,576,7,4,6,7,7,19,7,5,8,7,8,55,9,5,64,7,5,10,7,4,4, +7,4,2,7,4,7,7,8,45,7,4,3,7,5,11,7,4,5,7,8,53,7,5,9,9,8,448,7,4,6, +7,8,35,9,5,128,7,8,51,7,6,15,7,8,63,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3, +9,9,1472,7,4,5,7,8,43,7,6,17,9,9,1216,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64, +7,5,10,7,4,4,7,4,2,7,4,7,7,8,29,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9, +9,6,1664,7,4,6,7,8,33,9,5,128,7,8,49,7,6,14,7,8,61,7,4,4,7,4,2,7,4,7, +7,8,47,7,4,3,7,8,59,7,4,5,7,8,41,7,6,16,9,9,960,7,4,6,7,8,31,7,5,8, +7,8,57,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,7,7,22,7,4,3,7,5,11,7,4,5, +7,7,26,7,5,9,9,9,704,7,4,6,7,8,37,9,5,128,7,7,25,7,6,15,9,8,320,7,4,4, +7,4,2,7,4,7,7,6,13,7,4,3,7,7,18,7,4,5,7,7,21,7,6,17,9,7,256,7,4,6, +7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,11,11,1792,7,4,3, +7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6,7,7,20,9,5,128,7,7,24,7,6,14, +7,7,28,7,4,4,7,4,2,7,4,7,7,7,23,7,4,3,7,7,27,7,4,5,7,8,40,7,6,16, +9,9,832,7,4,6,7,7,19,7,5,8,7,8,56,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7, +7,8,46,7,4,3,7,5,11,7,4,5,7,8,54,7,5,9,9,8,512,7,4,6,7,8,36,9,5,128, +7,8,52,7,6,15,7,8,0,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3,9,9,1600,7,4,5, +7,8,44,7,6,17,9,9,1344,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4, +7,4,2,7,4,7,7,8,30,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6, +7,8,34,9,5,128,7,8,50,7,6,14,7,8,62,7,4,4,7,4,2,7,4,7,7,8,48,7,4,3, +7,8,60,7,4,5,7,8,42,7,6,16,9,9,1088,7,4,6,7,8,32,7,5,8,7,8,58,9,5,64, +7,5,10,7,4,4,7,4,2,7,4,7,7,7,22,7,4,3,7,5,11,7,4,5,7,7,26,7,5,9, +9,8,640,7,4,6,7,8,38,9,5,128,7,7,25,7,6,15,9,8,384,7,4,4,7,4,2,7,4,7, +7,6,13,7,4,3,7,7,18,7,4,5,7,7,21,7,6,17,9,7,256,7,4,6,7,6,1,7,5,8, +9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,0,0,0,7,4,3,7,5,11,7,4,5, +7,6,12,7,5,9,9,6,1664,7,4,6,7,7,20,9,5,128,7,7,24,7,6,14,7,7,28,7,4,4, +7,4,2,7,4,7,7,7,23,7,4,3,7,7,27,7,4,5,7,8,39,7,6,16,9,8,576,7,4,6, +7,7,19,7,5,8,7,8,55,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,7,8,45,7,4,3, +7,5,11,7,4,5,7,8,53,7,5,9,9,8,448,7,4,6,7,8,35,9,5,128,7,8,51,7,6,15, +7,8,63,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3,9,9,1536,7,4,5,7,8,43,7,6,17, +9,9,1280,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7, +7,8,29,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6,7,8,33,9,5,128, +7,8,49,7,6,14,7,8,61,7,4,4,7,4,2,7,4,7,7,8,47,7,4,3,7,8,59,7,4,5, +7,8,41,7,6,16,9,9,1024,7,4,6,7,8,31,7,5,8,7,8,57,9,5,64,7,5,10,7,4,4, +7,4,2,7,4,7,7,7,22,7,4,3,7,5,11,7,4,5,7,7,26,7,5,9,9,9,768,7,4,6, +7,8,37,9,5,128,7,7,25,7,6,15,9,8,320,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3, +7,7,18,7,4,5,7,7,21,7,6,17,9,7,256,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64, +7,5,10,7,4,4,7,4,2,7,4,7,11,11,1856,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9, +9,6,1664,7,4,6,7,7,20,9,5,128,7,7,24,7,6,14,7,7,28,7,4,4,7,4,2,7,4,7, +7,7,23,7,4,3,7,7,27,7,4,5,7,8,40,7,6,16,9,9,896,7,4,6,7,7,19,7,5,8, +7,8,56,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,7,8,46,7,4,3,7,5,11,7,4,5, +7,8,54,7,5,9,9,8,512,7,4,6,7,8,36,9,5,128,7,8,52,7,6,15,7,8,0,7,4,4, +7,4,2,7,4,7,7,6,13,7,4,3,9,9,1728,7,4,5,7,8,44,7,6,17,9,9,1408,7,4,6, +7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,7,8,30,7,4,3, +7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6,7,8,34,9,5,128,7,8,50,7,6,14, +7,8,62,7,4,4,7,4,2,7,4,7,7,8,48,7,4,3,7,8,60,7,4,5,7,8,42,7,6,16, +9,9,1152,7,4,6,7,8,32,7,5,8,7,8,58,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7, +7,7,22,7,4,3,7,5,11,7,4,5,7,7,26,7,5,9,9,8,640,7,4,6,7,8,38,9,5,128, +7,7,25,7,6,15,9,8,384,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3,7,7,18,7,4,5, +7,7,21,7,6,17,9,7,256,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4, +7,4,2,7,4,7,0,0,0,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6, +7,7,20,9,5,128,7,7,24,7,6,14,7,7,28,7,4,4,7,4,2,7,4,7,7,7,23,7,4,3, +7,7,27,7,4,5,7,8,39,7,6,16,9,8,576,7,4,6,7,7,19,7,5,8,7,8,55,9,5,64, +7,5,10,7,4,4,7,4,2,7,4,7,7,8,45,7,4,3,7,5,11,7,4,5,7,8,53,7,5,9, +9,8,448,7,4,6,7,8,35,9,5,128,7,8,51,7,6,15,7,8,63,7,4,4,7,4,2,7,4,7, +7,6,13,7,4,3,9,9,1472,7,4,5,7,8,43,7,6,17,9,9,1216,7,4,6,7,6,1,7,5,8, +9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,7,8,29,7,4,3,7,5,11,7,4,5, +7,6,12,7,5,9,9,6,1664,7,4,6,7,8,33,9,5,128,7,8,49,7,6,14,7,8,61,7,4,4, +7,4,2,7,4,7,7,8,47,7,4,3,7,8,59,7,4,5,7,8,41,7,6,16,9,9,960,7,4,6, 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+9,8,384,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3,7,7,18,7,4,5,7,7,21,7,6,17, +9,7,256,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7, +0,0,0,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6,7,7,20,9,5,128, +7,7,24,7,6,14,7,7,28,7,4,4,7,4,2,7,4,7,7,7,23,7,4,3,7,7,27,7,4,5, +7,8,39,7,6,16,9,8,576,7,4,6,7,7,19,7,5,8,7,8,55,9,5,64,7,5,10,7,4,4, +7,4,2,7,4,7,7,8,45,7,4,3,7,5,11,7,4,5,7,8,53,7,5,9,9,8,448,7,4,6, +7,8,35,9,5,128,7,8,51,7,6,15,7,8,63,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3, +9,9,1536,7,4,5,7,8,43,7,6,17,9,9,1280,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64, +7,5,10,7,4,4,7,4,2,7,4,7,7,8,29,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9, +9,6,1664,7,4,6,7,8,33,9,5,128,7,8,49,7,6,14,7,8,61,7,4,4,7,4,2,7,4,7, +7,8,47,7,4,3,7,8,59,7,4,5,7,8,41,7,6,16,9,9,1024,7,4,6,7,8,31,7,5,8, +7,8,57,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,7,7,22,7,4,3,7,5,11,7,4,5, +7,7,26,7,5,9,9,9,768,7,4,6,7,8,37,9,5,128,7,7,25,7,6,15,9,8,320,7,4,4, +7,4,2,7,4,7,7,6,13,7,4,3,7,7,18,7,4,5,7,7,21,7,6,17,9,7,256,7,4,6, +7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7,11,12,2560,7,4,3, +7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6,7,7,20,9,5,128,7,7,24,7,6,14, +7,7,28,7,4,4,7,4,2,7,4,7,7,7,23,7,4,3,7,7,27,7,4,5,7,8,40,7,6,16, +9,9,896,7,4,6,7,7,19,7,5,8,7,8,56,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7, +7,8,46,7,4,3,7,5,11,7,4,5,7,8,54,7,5,9,9,8,512,7,4,6,7,8,36,9,5,128, +7,8,52,7,6,15,7,8,0,7,4,4,7,4,2,7,4,7,7,6,13,7,4,3,9,9,1728,7,4,5, +7,8,44,7,6,17,9,9,1408,7,4,6,7,6,1,7,5,8,9,6,192,9,5,64,7,5,10,7,4,4, +7,4,2,7,4,7,7,8,30,7,4,3,7,5,11,7,4,5,7,6,12,7,5,9,9,6,1664,7,4,6, +7,8,34,9,5,128,7,8,50,7,6,14,7,8,62,7,4,4,7,4,2,7,4,7,7,8,48,7,4,3, +7,8,60,7,4,5,7,8,42,7,6,16,9,9,1152,7,4,6,7,8,32,7,5,8,7,8,58,9,5,64, +7,5,10,7,4,4,7,4,2,7,4,7,7,7,22,7,4,3,7,5,11,7,4,5,7,7,26,7,5,9, +9,8,640,7,4,6,7,8,38,9,5,128,7,7,25,7,6,15,9,8,384,7,4,4,7,4,2,7,4,7, +7,6,13,7,4,3,7,7,18,7,4,5,7,7,21,7,6,17,9,7,256,7,4,6,7,6,1,7,5,8, +9,6,192,9,5,64,7,5,10,7,4,4,7,4,2,7,4,7 +}; + const TIFFFaxTabEnt TIFFFaxBlackTable[8192] = { +12,11,0,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,6,9,8,2,3, +8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,7,10,8,2,3,8,3,1,8,2,2, +8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3, +8,3,4,8,2,2,8,8,13,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2, +8,6,8,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,9,15,8,2,3, +8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2, +8,4,5,8,2,3,8,3,4,8,2,2,8,10,18,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3, +8,3,4,8,2,2,8,6,9,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2, +8,7,11,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3, +8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,10,17,8,2,3,8,3,1,8,2,2, +8,4,6,8,2,3,8,3,4,8,2,2,8,6,8,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3, +8,3,4,8,2,2,8,7,12,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2, +8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,11,11,1792,8,2,3, +8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,6,9,8,2,3,8,3,1,8,2,2, +8,4,5,8,2,3,8,3,4,8,2,2,8,7,10,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3, +8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2, +8,11,23,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,6,8,8,2,3, +8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,11,20,8,2,3,8,3,1,8,2,2, +8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3, +8,3,4,8,2,2,8,11,25,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2, +8,6,9,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,7,11,8,2,3, +8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2, +8,4,5,8,2,3,8,3,4,8,2,2,8,8,14,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3, +8,3,4,8,2,2,8,6,8,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2, +8,7,12,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3, +8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,0,0,0,8,2,3,8,3,1,8,2,2, +8,4,6,8,2,3,8,3,4,8,2,2,8,6,9,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3, +8,3,4,8,2,2,8,7,10,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2, +8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,8,13,8,2,3, +8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,6,8,8,2,3,8,3,1,8,2,2, +8,4,5,8,2,3,8,3,4,8,2,2,10,12,128,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3, +8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2, +8,12,56,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,6,9,8,2,3, +8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,7,11,8,2,3,8,3,1,8,2,2, +8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3, +8,3,4,8,2,2,8,12,30,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2, +8,6,8,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,7,12,8,2,3, +8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3,8,3,1,8,2,2, +8,4,5,8,2,3,8,3,4,8,2,2,11,11,1856,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3, +8,3,4,8,2,2,8,6,9,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2, +8,7,10,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2,8,5,7,8,2,3, +8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,12,57,8,2,3,8,3,1,8,2,2, +8,4,6,8,2,3,8,3,4,8,2,2,8,6,8,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3, +8,3,4,8,2,2,8,11,21,8,2,3,8,3,1,8,2,2,8,4,6,8,2,3,8,3,4,8,2,2, +8,5,7,8,2,3,8,3,1,8,2,2,8,4,5,8,2,3,8,3,4,8,2,2,8,12,54,8,2,3, 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modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + */ +#include "tiffiop.h" + +int +TIFFFlush(TIFF* tif) +{ + + if (tif->tif_mode != O_RDONLY) { + if (!TIFFFlushData(tif)) + return (0); + if ((tif->tif_flags & TIFF_DIRTYDIRECT) && + !TIFFWriteDirectory(tif)) + return (0); + } + return (1); +} + +/* + * Flush buffered data to the file. + * + * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING + * is not set, so that TIFFFlush() will proceed to write out the directory. + * The documentation says returning 1 is an error indicator, but not having + * been writing isn't exactly a an error. Hopefully this doesn't cause + * problems for other people. + */ +int +TIFFFlushData(TIFF* tif) +{ + if ((tif->tif_flags & TIFF_BEENWRITING) == 0) + return (0); + if (tif->tif_flags & TIFF_POSTENCODE) { + tif->tif_flags &= ~TIFF_POSTENCODE; + if (!(*tif->tif_postencode)(tif)) + return (0); + } + return (TIFFFlushData1(tif)); +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_getimage.c b/tiff/libtiff/tif_getimage.c new file mode 100644 index 0000000..38455fb --- /dev/null +++ b/tiff/libtiff/tif_getimage.c @@ -0,0 +1,2676 @@ +/* $Id: tif_getimage.c,v 1.63.2.4 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1991-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library + * + * Read and return a packed RGBA image. + */ +#include "tiffiop.h" +#include <stdio.h> + +static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32); +static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); +static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32); +static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); +static int PickContigCase(TIFFRGBAImage*); +static int PickSeparateCase(TIFFRGBAImage*); +static const char photoTag[] = "PhotometricInterpretation"; + +/* + * Helper constants used in Orientation tag handling + */ +#define FLIP_VERTICALLY 0x01 +#define FLIP_HORIZONTALLY 0x02 + +/* + * Color conversion constants. We will define display types here. + */ + +TIFFDisplay display_sRGB = { + { /* XYZ -> luminance matrix */ + { 3.2410F, -1.5374F, -0.4986F }, + { -0.9692F, 1.8760F, 0.0416F }, + { 0.0556F, -0.2040F, 1.0570F } + }, + 100.0F, 100.0F, 100.0F, /* Light o/p for reference white */ + 255, 255, 255, /* Pixel values for ref. white */ + 1.0F, 1.0F, 1.0F, /* Residual light o/p for black pixel */ + 2.4F, 2.4F, 2.4F, /* Gamma values for the three guns */ +}; + +/* + * Check the image to see if TIFFReadRGBAImage can deal with it. + * 1/0 is returned according to whether or not the image can + * be handled. If 0 is returned, emsg contains the reason + * why it is being rejected. + */ +int +TIFFRGBAImageOK(TIFF* tif, char emsg[1024]) +{ + TIFFDirectory* td = &tif->tif_dir; + uint16 photometric; + int colorchannels; + + if (!tif->tif_decodestatus) { + sprintf(emsg, "Sorry, requested compression method is not configured"); + return (0); + } + switch (td->td_bitspersample) { + case 1: + case 2: + case 4: + case 8: + case 16: + break; + default: + sprintf(emsg, "Sorry, can not handle images with %d-bit samples", + td->td_bitspersample); + return (0); + } + colorchannels = td->td_samplesperpixel - td->td_extrasamples; + if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) { + switch (colorchannels) { + case 1: + photometric = PHOTOMETRIC_MINISBLACK; + break; + case 3: + photometric = PHOTOMETRIC_RGB; + break; + default: + sprintf(emsg, "Missing needed %s tag", photoTag); + return (0); + } + } + switch (photometric) { + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_PALETTE: + if (td->td_planarconfig == PLANARCONFIG_CONTIG + && td->td_samplesperpixel != 1 + && td->td_bitspersample < 8 ) { + sprintf(emsg, + "Sorry, can not handle contiguous data with %s=%d, " + "and %s=%d and Bits/Sample=%d", + photoTag, photometric, + "Samples/pixel", td->td_samplesperpixel, + td->td_bitspersample); + return (0); + } + /* + * We should likely validate that any extra samples are either + * to be ignored, or are alpha, and if alpha we should try to use + * them. But for now we won't bother with this. + */ + break; + case PHOTOMETRIC_YCBCR: + /* + * TODO: if at all meaningful and useful, make more complete + * support check here, or better still, refactor to let supporting + * code decide whether there is support and what meaningfull + * error to return + */ + break; + case PHOTOMETRIC_RGB: + if (colorchannels < 3) { + sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", + "Color channels", colorchannels); + return (0); + } + break; + case PHOTOMETRIC_SEPARATED: + { + uint16 inkset; + TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); + if (inkset != INKSET_CMYK) { + sprintf(emsg, + "Sorry, can not handle separated image with %s=%d", + "InkSet", inkset); + return 0; + } + if (td->td_samplesperpixel < 4) { + sprintf(emsg, + "Sorry, can not handle separated image with %s=%d", + "Samples/pixel", td->td_samplesperpixel); + return 0; + } + break; + } + case PHOTOMETRIC_LOGL: + if (td->td_compression != COMPRESSION_SGILOG) { + sprintf(emsg, "Sorry, LogL data must have %s=%d", + "Compression", COMPRESSION_SGILOG); + return (0); + } + break; + case PHOTOMETRIC_LOGLUV: + if (td->td_compression != COMPRESSION_SGILOG && + td->td_compression != COMPRESSION_SGILOG24) { + sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", + "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); + return (0); + } + if (td->td_planarconfig != PLANARCONFIG_CONTIG) { + sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", + "Planarconfiguration", td->td_planarconfig); + return (0); + } + break; + case PHOTOMETRIC_CIELAB: + break; + default: + sprintf(emsg, "Sorry, can not handle image with %s=%d", + photoTag, photometric); + return (0); + } + return (1); +} + +void +TIFFRGBAImageEnd(TIFFRGBAImage* img) +{ + if (img->Map) + _TIFFfree(img->Map), img->Map = NULL; + if (img->BWmap) + _TIFFfree(img->BWmap), img->BWmap = NULL; + if (img->PALmap) + _TIFFfree(img->PALmap), img->PALmap = NULL; + if (img->ycbcr) + _TIFFfree(img->ycbcr), img->ycbcr = NULL; + if (img->cielab) + _TIFFfree(img->cielab), img->cielab = NULL; + if( img->redcmap ) { + _TIFFfree( img->redcmap ); + _TIFFfree( img->greencmap ); + _TIFFfree( img->bluecmap ); + } +} + +static int +isCCITTCompression(TIFF* tif) +{ + uint16 compress; + TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); + return (compress == COMPRESSION_CCITTFAX3 || + compress == COMPRESSION_CCITTFAX4 || + compress == COMPRESSION_CCITTRLE || + compress == COMPRESSION_CCITTRLEW); +} + +int +TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) +{ + uint16* sampleinfo; + uint16 extrasamples; + uint16 planarconfig; + uint16 compress; + int colorchannels; + uint16 *red_orig, *green_orig, *blue_orig; + int n_color; + + /* Initialize to normal values */ + img->row_offset = 0; + img->col_offset = 0; + img->redcmap = NULL; + img->greencmap = NULL; + img->bluecmap = NULL; + img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */ + + img->tif = tif; + img->stoponerr = stop; + TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample); + switch (img->bitspersample) { + case 1: + case 2: + case 4: + case 8: + case 16: + break; + default: + sprintf(emsg, "Sorry, can not handle images with %d-bit samples", + img->bitspersample); + return (0); + } + img->alpha = 0; + TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel); + TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, + &extrasamples, &sampleinfo); + if (extrasamples >= 1) + { + switch (sampleinfo[0]) { + case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */ + if (img->samplesperpixel > 3) /* correct info about alpha channel */ + img->alpha = EXTRASAMPLE_ASSOCALPHA; + break; + case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */ + case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */ + img->alpha = sampleinfo[0]; + break; + } + } + +#ifdef DEFAULT_EXTRASAMPLE_AS_ALPHA + if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) + img->photometric = PHOTOMETRIC_MINISWHITE; + + if( extrasamples == 0 + && img->samplesperpixel == 4 + && img->photometric == PHOTOMETRIC_RGB ) + { + img->alpha = EXTRASAMPLE_ASSOCALPHA; + extrasamples = 1; + } +#endif + + colorchannels = img->samplesperpixel - extrasamples; + TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress); + TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig); + if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) { + switch (colorchannels) { + case 1: + if (isCCITTCompression(tif)) + img->photometric = PHOTOMETRIC_MINISWHITE; + else + img->photometric = PHOTOMETRIC_MINISBLACK; + break; + case 3: + img->photometric = PHOTOMETRIC_RGB; + break; + default: + sprintf(emsg, "Missing needed %s tag", photoTag); + return (0); + } + } + switch (img->photometric) { + case PHOTOMETRIC_PALETTE: + if (!TIFFGetField(tif, TIFFTAG_COLORMAP, + &red_orig, &green_orig, &blue_orig)) { + sprintf(emsg, "Missing required \"Colormap\" tag"); + return (0); + } + + /* copy the colormaps so we can modify them */ + n_color = (1L << img->bitspersample); + img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); + img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); + img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); + if( !img->redcmap || !img->greencmap || !img->bluecmap ) { + sprintf(emsg, "Out of memory for colormap copy"); + return (0); + } + + _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 ); + _TIFFmemcpy( img->greencmap, green_orig, n_color * 2 ); + _TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 ); + + /* fall thru... */ + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + if (planarconfig == PLANARCONFIG_CONTIG + && img->samplesperpixel != 1 + && img->bitspersample < 8 ) { + sprintf(emsg, + "Sorry, can not handle contiguous data with %s=%d, " + "and %s=%d and Bits/Sample=%d", + photoTag, img->photometric, + "Samples/pixel", img->samplesperpixel, + img->bitspersample); + return (0); + } + break; + case PHOTOMETRIC_YCBCR: + /* It would probably be nice to have a reality check here. */ + if (planarconfig == PLANARCONFIG_CONTIG) + /* can rely on libjpeg to convert to RGB */ + /* XXX should restore current state on exit */ + switch (compress) { + case COMPRESSION_JPEG: + /* + * TODO: when complete tests verify complete desubsampling + * and YCbCr handling, remove use of TIFFTAG_JPEGCOLORMODE in + * favor of tif_getimage.c native handling + */ + TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); + img->photometric = PHOTOMETRIC_RGB; + break; + default: + /* do nothing */; + break; + } + /* + * TODO: if at all meaningful and useful, make more complete + * support check here, or better still, refactor to let supporting + * code decide whether there is support and what meaningfull + * error to return + */ + break; + case PHOTOMETRIC_RGB: + if (colorchannels < 3) { + sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", + "Color channels", colorchannels); + return (0); + } + break; + case PHOTOMETRIC_SEPARATED: + { + uint16 inkset; + TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); + if (inkset != INKSET_CMYK) { + sprintf(emsg, "Sorry, can not handle separated image with %s=%d", + "InkSet", inkset); + return (0); + } + if (img->samplesperpixel < 4) { + sprintf(emsg, "Sorry, can not handle separated image with %s=%d", + "Samples/pixel", img->samplesperpixel); + return (0); + } + } + break; + case PHOTOMETRIC_LOGL: + if (compress != COMPRESSION_SGILOG) { + sprintf(emsg, "Sorry, LogL data must have %s=%d", + "Compression", COMPRESSION_SGILOG); + return (0); + } + TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); + img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */ + img->bitspersample = 8; + break; + case PHOTOMETRIC_LOGLUV: + if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) { + sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", + "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); + return (0); + } + if (planarconfig != PLANARCONFIG_CONTIG) { + sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", + "Planarconfiguration", planarconfig); + return (0); + } + TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); + img->photometric = PHOTOMETRIC_RGB; /* little white lie */ + img->bitspersample = 8; + break; + case PHOTOMETRIC_CIELAB: + break; + default: + sprintf(emsg, "Sorry, can not handle image with %s=%d", + photoTag, img->photometric); + return (0); + } + img->Map = NULL; + img->BWmap = NULL; + img->PALmap = NULL; + img->ycbcr = NULL; + img->cielab = NULL; + TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width); + TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height); + TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation); + img->isContig = + !(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1); + if (img->isContig) { + if (!PickContigCase(img)) { + sprintf(emsg, "Sorry, can not handle image"); + return 0; + } + } else { + if (!PickSeparateCase(img)) { + sprintf(emsg, "Sorry, can not handle image"); + return 0; + } + } + return 1; +} + +int +TIFFRGBAImageGet(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) +{ + if (img->get == NULL) { + TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No \"get\" routine setup"); + return (0); + } + if (img->put.any == NULL) { + TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), + "No \"put\" routine setupl; probably can not handle image format"); + return (0); + } + return (*img->get)(img, raster, w, h); +} + +/* + * Read the specified image into an ABGR-format rastertaking in account + * specified orientation. + */ +int +TIFFReadRGBAImageOriented(TIFF* tif, + uint32 rwidth, uint32 rheight, uint32* raster, + int orientation, int stop) +{ + char emsg[1024] = ""; + TIFFRGBAImage img; + int ok; + + if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, stop, emsg)) { + img.req_orientation = orientation; + /* XXX verify rwidth and rheight against width and height */ + ok = TIFFRGBAImageGet(&img, raster+(rheight-img.height)*rwidth, + rwidth, img.height); + TIFFRGBAImageEnd(&img); + } else { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg); + ok = 0; + } + return (ok); +} + +/* + * Read the specified image into an ABGR-format raster. Use bottom left + * origin for raster by default. + */ +int +TIFFReadRGBAImage(TIFF* tif, + uint32 rwidth, uint32 rheight, uint32* raster, int stop) +{ + return TIFFReadRGBAImageOriented(tif, rwidth, rheight, raster, + ORIENTATION_BOTLEFT, stop); +} + +static int +setorientation(TIFFRGBAImage* img) +{ + switch (img->orientation) { + case ORIENTATION_TOPLEFT: + case ORIENTATION_LEFTTOP: + if (img->req_orientation == ORIENTATION_TOPRIGHT || + img->req_orientation == ORIENTATION_RIGHTTOP) + return FLIP_HORIZONTALLY; + else if (img->req_orientation == ORIENTATION_BOTRIGHT || + img->req_orientation == ORIENTATION_RIGHTBOT) + return FLIP_HORIZONTALLY | FLIP_VERTICALLY; + else if (img->req_orientation == ORIENTATION_BOTLEFT || + img->req_orientation == ORIENTATION_LEFTBOT) + return FLIP_VERTICALLY; + else + return 0; + case ORIENTATION_TOPRIGHT: + case ORIENTATION_RIGHTTOP: + if (img->req_orientation == ORIENTATION_TOPLEFT || + img->req_orientation == ORIENTATION_LEFTTOP) + return FLIP_HORIZONTALLY; + else if (img->req_orientation == ORIENTATION_BOTRIGHT || + img->req_orientation == ORIENTATION_RIGHTBOT) + return FLIP_VERTICALLY; + else if (img->req_orientation == ORIENTATION_BOTLEFT || + img->req_orientation == ORIENTATION_LEFTBOT) + return FLIP_HORIZONTALLY | FLIP_VERTICALLY; + else + return 0; + case ORIENTATION_BOTRIGHT: + case ORIENTATION_RIGHTBOT: + if (img->req_orientation == ORIENTATION_TOPLEFT || + img->req_orientation == ORIENTATION_LEFTTOP) + return FLIP_HORIZONTALLY | FLIP_VERTICALLY; + else if (img->req_orientation == ORIENTATION_TOPRIGHT || + img->req_orientation == ORIENTATION_RIGHTTOP) + return FLIP_VERTICALLY; + else if (img->req_orientation == ORIENTATION_BOTLEFT || + img->req_orientation == ORIENTATION_LEFTBOT) + return FLIP_HORIZONTALLY; + else + return 0; + case ORIENTATION_BOTLEFT: + case ORIENTATION_LEFTBOT: + if (img->req_orientation == ORIENTATION_TOPLEFT || + img->req_orientation == ORIENTATION_LEFTTOP) + return FLIP_VERTICALLY; + else if (img->req_orientation == ORIENTATION_TOPRIGHT || + img->req_orientation == ORIENTATION_RIGHTTOP) + return FLIP_HORIZONTALLY | FLIP_VERTICALLY; + else if (img->req_orientation == ORIENTATION_BOTRIGHT || + img->req_orientation == ORIENTATION_RIGHTBOT) + return FLIP_HORIZONTALLY; + else + return 0; + default: /* NOTREACHED */ + return 0; + } +} + +/* + * Get an tile-organized image that has + * PlanarConfiguration contiguous if SamplesPerPixel > 1 + * or + * SamplesPerPixel == 1 + */ +static int +gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) +{ + TIFF* tif = img->tif; + tileContigRoutine put = img->put.contig; + uint32 col, row, y, rowstoread; + uint32 pos; + uint32 tw, th; + unsigned char* buf; + int32 fromskew, toskew; + uint32 nrow; + int ret = 1, flip; + + buf = (unsigned char*) _TIFFmalloc(TIFFTileSize(tif)); + if (buf == 0) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); + return (0); + } + _TIFFmemset(buf, 0, TIFFTileSize(tif)); + TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); + TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(tw + w); + } + else { + y = 0; + toskew = -(int32)(tw - w); + } + + for (row = 0; row < h; row += nrow) + { + rowstoread = th - (row + img->row_offset) % th; + nrow = (row + rowstoread > h ? h - row : rowstoread); + for (col = 0; col < w; col += tw) + { + if (TIFFReadTile(tif, buf, col+img->col_offset, + row+img->row_offset, 0, 0) < 0 && img->stoponerr) + { + ret = 0; + break; + } + + pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); + + if (col + tw > w) + { + /* + * Tile is clipped horizontally. Calculate + * visible portion and skewing factors. + */ + uint32 npix = w - col; + fromskew = tw - npix; + (*put)(img, raster+y*w+col, col, y, + npix, nrow, fromskew, toskew + fromskew, buf + pos); + } + else + { + (*put)(img, raster+y*w+col, col, y, tw, nrow, 0, toskew, buf + pos); + } + } + + y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); + } + _TIFFfree(buf); + + if (flip & FLIP_HORIZONTALLY) { + uint32 line; + + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; + + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } + + return (ret); +} + +/* + * Get an tile-organized image that has + * SamplesPerPixel > 1 + * PlanarConfiguration separated + * We assume that all such images are RGB. + */ +static int +gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) +{ + TIFF* tif = img->tif; + tileSeparateRoutine put = img->put.separate; + uint32 col, row, y, rowstoread; + uint32 pos; + uint32 tw, th; + unsigned char* buf; + unsigned char* p0; + unsigned char* p1; + unsigned char* p2; + unsigned char* pa; + tsize_t tilesize; + int32 fromskew, toskew; + int alpha = img->alpha; + uint32 nrow; + int ret = 1, flip; + + tilesize = TIFFTileSize(tif); + buf = (unsigned char*) _TIFFmalloc((alpha?4:3)*tilesize); + if (buf == 0) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); + return (0); + } + _TIFFmemset(buf, 0, (alpha?4:3)*tilesize); + p0 = buf; + p1 = p0 + tilesize; + p2 = p1 + tilesize; + pa = (alpha?(p2+tilesize):NULL); + TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); + TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(tw + w); + } + else { + y = 0; + toskew = -(int32)(tw - w); + } + + for (row = 0; row < h; row += nrow) + { + rowstoread = th - (row + img->row_offset) % th; + nrow = (row + rowstoread > h ? h - row : rowstoread); + for (col = 0; col < w; col += tw) + { + if (TIFFReadTile(tif, p0, col+img->col_offset, + row+img->row_offset,0,0) < 0 && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadTile(tif, p1, col+img->col_offset, + row+img->row_offset,0,1) < 0 && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadTile(tif, p2, col+img->col_offset, + row+img->row_offset,0,2) < 0 && img->stoponerr) + { + ret = 0; + break; + } + if (alpha) + { + if (TIFFReadTile(tif,pa,col+img->col_offset, + row+img->row_offset,0,3) < 0 && img->stoponerr) + { + ret = 0; + break; + } + } + + pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); + + if (col + tw > w) + { + /* + * Tile is clipped horizontally. Calculate + * visible portion and skewing factors. + */ + uint32 npix = w - col; + fromskew = tw - npix; + (*put)(img, raster+y*w+col, col, y, + npix, nrow, fromskew, toskew + fromskew, + p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL)); + } else { + (*put)(img, raster+y*w+col, col, y, + tw, nrow, 0, toskew, p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL)); + } + } + + y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow); + } + + if (flip & FLIP_HORIZONTALLY) { + uint32 line; + + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; + + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } + + _TIFFfree(buf); + return (ret); +} + +/* + * Get a strip-organized image that has + * PlanarConfiguration contiguous if SamplesPerPixel > 1 + * or + * SamplesPerPixel == 1 + */ +static int +gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) +{ + TIFF* tif = img->tif; + tileContigRoutine put = img->put.contig; + uint32 row, y, nrow, nrowsub, rowstoread; + uint32 pos; + unsigned char* buf; + uint32 rowsperstrip; + uint16 subsamplinghor,subsamplingver; + uint32 imagewidth = img->width; + tsize_t scanline; + int32 fromskew, toskew; + int ret = 1, flip; + + buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif)); + if (buf == 0) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer"); + return (0); + } + _TIFFmemset(buf, 0, TIFFStripSize(tif)); + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(w + w); + } else { + y = 0; + toskew = -(int32)(w - w); + } + + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); + TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver); + scanline = TIFFNewScanlineSize(tif); + fromskew = (w < imagewidth ? imagewidth - w : 0); + for (row = 0; row < h; row += nrow) + { + rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; + nrow = (row + rowstoread > h ? h - row : rowstoread); + nrowsub = nrow; + if ((nrowsub%subsamplingver)!=0) + nrowsub+=subsamplingver-nrowsub%subsamplingver; + if (TIFFReadEncodedStrip(tif, + TIFFComputeStrip(tif,row+img->row_offset, 0), + buf, + ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + + pos = ((row + img->row_offset) % rowsperstrip) * scanline; + (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos); + y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); + } + + if (flip & FLIP_HORIZONTALLY) { + uint32 line; + + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; + + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } + + _TIFFfree(buf); + return (ret); +} + +/* + * Get a strip-organized image with + * SamplesPerPixel > 1 + * PlanarConfiguration separated + * We assume that all such images are RGB. + */ +static int +gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) +{ + TIFF* tif = img->tif; + tileSeparateRoutine put = img->put.separate; + unsigned char *buf; + unsigned char *p0, *p1, *p2, *pa; + uint32 row, y, nrow, rowstoread; + uint32 pos; + tsize_t scanline; + uint32 rowsperstrip, offset_row; + uint32 imagewidth = img->width; + tsize_t stripsize; + int32 fromskew, toskew; + int alpha = img->alpha; + int ret = 1, flip; + + stripsize = TIFFStripSize(tif); + p0 = buf = (unsigned char *)_TIFFmalloc((alpha?4:3)*stripsize); + if (buf == 0) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); + return (0); + } + _TIFFmemset(buf, 0, (alpha?4:3)*stripsize); + p1 = p0 + stripsize; + p2 = p1 + stripsize; + pa = (alpha?(p2+stripsize):NULL); + + flip = setorientation(img); + if (flip & FLIP_VERTICALLY) { + y = h - 1; + toskew = -(int32)(w + w); + } + else { + y = 0; + toskew = -(int32)(w - w); + } + + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); + scanline = TIFFScanlineSize(tif); + fromskew = (w < imagewidth ? imagewidth - w : 0); + for (row = 0; row < h; row += nrow) + { + rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; + nrow = (row + rowstoread > h ? h - row : rowstoread); + offset_row = row + img->row_offset; + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0), + p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1), + p1, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2), + p2, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + if (alpha) + { + if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 3), + pa, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0 + && img->stoponerr) + { + ret = 0; + break; + } + } + + pos = ((row + img->row_offset) % rowsperstrip) * scanline; + (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, p0 + pos, p1 + pos, + p2 + pos, (alpha?(pa+pos):NULL)); + y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); + } + + if (flip & FLIP_HORIZONTALLY) { + uint32 line; + + for (line = 0; line < h; line++) { + uint32 *left = raster + (line * w); + uint32 *right = left + w - 1; + + while ( left < right ) { + uint32 temp = *left; + *left = *right; + *right = temp; + left++, right--; + } + } + } + + _TIFFfree(buf); + return (ret); +} + +/* + * The following routines move decoded data returned + * from the TIFF library into rasters filled with packed + * ABGR pixels (i.e. suitable for passing to lrecwrite.) + * + * The routines have been created according to the most + * important cases and optimized. PickContigCase and + * PickSeparateCase analyze the parameters and select + * the appropriate "get" and "put" routine to use. + */ +#define REPEAT8(op) REPEAT4(op); REPEAT4(op) +#define REPEAT4(op) REPEAT2(op); REPEAT2(op) +#define REPEAT2(op) op; op +#define CASE8(x,op) \ + switch (x) { \ + case 7: op; case 6: op; case 5: op; \ + case 4: op; case 3: op; case 2: op; \ + case 1: op; \ + } +#define CASE4(x,op) switch (x) { case 3: op; case 2: op; case 1: op; } +#define NOP + +#define UNROLL8(w, op1, op2) { \ + uint32 _x; \ + for (_x = w; _x >= 8; _x -= 8) { \ + op1; \ + REPEAT8(op2); \ + } \ + if (_x > 0) { \ + op1; \ + CASE8(_x,op2); \ + } \ +} +#define UNROLL4(w, op1, op2) { \ + uint32 _x; \ + for (_x = w; _x >= 4; _x -= 4) { \ + op1; \ + REPEAT4(op2); \ + } \ + if (_x > 0) { \ + op1; \ + CASE4(_x,op2); \ + } \ +} +#define UNROLL2(w, op1, op2) { \ + uint32 _x; \ + for (_x = w; _x >= 2; _x -= 2) { \ + op1; \ + REPEAT2(op2); \ + } \ + if (_x) { \ + op1; \ + op2; \ + } \ +} + +#define SKEW(r,g,b,skew) { r += skew; g += skew; b += skew; } +#define SKEW4(r,g,b,a,skew) { r += skew; g += skew; b += skew; a+= skew; } + +#define A1 (((uint32)0xffL)<<24) +#define PACK(r,g,b) \ + ((uint32)(r)|((uint32)(g)<<8)|((uint32)(b)<<16)|A1) +#define PACK4(r,g,b,a) \ + ((uint32)(r)|((uint32)(g)<<8)|((uint32)(b)<<16)|((uint32)(a)<<24)) +#define W2B(v) (((v)>>8)&0xff) +#define PACKW(r,g,b) \ + ((uint32)W2B(r)|((uint32)W2B(g)<<8)|((uint32)W2B(b)<<16)|A1) +#define PACKW4(r,g,b,a) \ + ((uint32)W2B(r)|((uint32)W2B(g)<<8)|((uint32)W2B(b)<<16)|((uint32)W2B(a)<<24)) + +#define DECLAREContigPutFunc(name) \ +static void name(\ + TIFFRGBAImage* img, \ + uint32* cp, \ + uint32 x, uint32 y, \ + uint32 w, uint32 h, \ + int32 fromskew, int32 toskew, \ + unsigned char* pp \ +) + +/* + * 8-bit palette => colormap/RGB + */ +DECLAREContigPutFunc(put8bitcmaptile) +{ + uint32** PALmap = img->PALmap; + int samplesperpixel = img->samplesperpixel; + + (void) y; + while (h-- > 0) { + for (x = w; x-- > 0;) + { + *cp++ = PALmap[*pp][0]; + pp += samplesperpixel; + } + cp += toskew; + pp += fromskew; + } +} + +/* + * 4-bit palette => colormap/RGB + */ +DECLAREContigPutFunc(put4bitcmaptile) +{ + uint32** PALmap = img->PALmap; + + (void) x; (void) y; + fromskew /= 2; + while (h-- > 0) { + uint32* bw; + UNROLL2(w, bw = PALmap[*pp++], *cp++ = *bw++); + cp += toskew; + pp += fromskew; + } +} + +/* + * 2-bit palette => colormap/RGB + */ +DECLAREContigPutFunc(put2bitcmaptile) +{ + uint32** PALmap = img->PALmap; + + (void) x; (void) y; + fromskew /= 4; + while (h-- > 0) { + uint32* bw; + UNROLL4(w, bw = PALmap[*pp++], *cp++ = *bw++); + cp += toskew; + pp += fromskew; + } +} + +/* + * 1-bit palette => colormap/RGB + */ +DECLAREContigPutFunc(put1bitcmaptile) +{ + uint32** PALmap = img->PALmap; + + (void) x; (void) y; + fromskew /= 8; + while (h-- > 0) { + uint32* bw; + UNROLL8(w, bw = PALmap[*pp++], *cp++ = *bw++); + cp += toskew; + pp += fromskew; + } +} + +/* + * 8-bit greyscale => colormap/RGB + */ +DECLAREContigPutFunc(putgreytile) +{ + int samplesperpixel = img->samplesperpixel; + uint32** BWmap = img->BWmap; + + (void) y; + while (h-- > 0) { + for (x = w; x-- > 0;) + { + *cp++ = BWmap[*pp][0]; + pp += samplesperpixel; + } + cp += toskew; + pp += fromskew; + } +} + +/* + * 16-bit greyscale => colormap/RGB + */ +DECLAREContigPutFunc(put16bitbwtile) +{ + int samplesperpixel = img->samplesperpixel; + uint32** BWmap = img->BWmap; + + (void) y; + while (h-- > 0) { + uint16 *wp = (uint16 *) pp; + + for (x = w; x-- > 0;) + { + /* use high order byte of 16bit value */ + + *cp++ = BWmap[*wp >> 8][0]; + pp += 2 * samplesperpixel; + wp += samplesperpixel; + } + cp += toskew; + pp += fromskew; + } +} + +/* + * 1-bit bilevel => colormap/RGB + */ +DECLAREContigPutFunc(put1bitbwtile) +{ + uint32** BWmap = img->BWmap; + + (void) x; (void) y; + fromskew /= 8; + while (h-- > 0) { + uint32* bw; + UNROLL8(w, bw = BWmap[*pp++], *cp++ = *bw++); + cp += toskew; + pp += fromskew; + } +} + +/* + * 2-bit greyscale => colormap/RGB + */ +DECLAREContigPutFunc(put2bitbwtile) +{ + uint32** BWmap = img->BWmap; + + (void) x; (void) y; + fromskew /= 4; + while (h-- > 0) { + uint32* bw; + UNROLL4(w, bw = BWmap[*pp++], *cp++ = *bw++); + cp += toskew; + pp += fromskew; + } +} + +/* + * 4-bit greyscale => colormap/RGB + */ +DECLAREContigPutFunc(put4bitbwtile) +{ + uint32** BWmap = img->BWmap; + + (void) x; (void) y; + fromskew /= 2; + while (h-- > 0) { + uint32* bw; + UNROLL2(w, bw = BWmap[*pp++], *cp++ = *bw++); + cp += toskew; + pp += fromskew; + } +} + +/* + * 8-bit packed samples, no Map => RGB + */ +DECLAREContigPutFunc(putRGBcontig8bittile) +{ + int samplesperpixel = img->samplesperpixel; + + (void) x; (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + UNROLL8(w, NOP, + *cp++ = PACK(pp[0], pp[1], pp[2]); + pp += samplesperpixel); + cp += toskew; + pp += fromskew; + } +} + +/* + * 8-bit packed samples => RGBA w/ associated alpha + * (known to have Map == NULL) + */ +DECLAREContigPutFunc(putRGBAAcontig8bittile) +{ + int samplesperpixel = img->samplesperpixel; + + (void) x; (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + UNROLL8(w, NOP, + *cp++ = PACK4(pp[0], pp[1], pp[2], pp[3]); + pp += samplesperpixel); + cp += toskew; + pp += fromskew; + } +} + +/* + * 8-bit packed samples => RGBA w/ unassociated alpha + * (known to have Map == NULL) + */ +DECLAREContigPutFunc(putRGBUAcontig8bittile) +{ + int samplesperpixel = img->samplesperpixel; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + uint32 r, g, b, a; + for (x = w; x-- > 0;) { + a = pp[3]; + r = (a*pp[0] + 127) / 255; + g = (a*pp[1] + 127) / 255; + b = (a*pp[2] + 127) / 255; + *cp++ = PACK4(r,g,b,a); + pp += samplesperpixel; + } + cp += toskew; + pp += fromskew; + } +} + +/* + * 16-bit packed samples => RGB + */ +DECLAREContigPutFunc(putRGBcontig16bittile) +{ + int samplesperpixel = img->samplesperpixel; + uint16 *wp = (uint16 *)pp; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + for (x = w; x-- > 0;) { + *cp++ = PACKW(wp[0],wp[1],wp[2]); + wp += samplesperpixel; + } + cp += toskew; + wp += fromskew; + } +} + +/* + * 16-bit packed samples => RGBA w/ associated alpha + * (known to have Map == NULL) + */ +DECLAREContigPutFunc(putRGBAAcontig16bittile) +{ + int samplesperpixel = img->samplesperpixel; + uint16 *wp = (uint16 *)pp; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + for (x = w; x-- > 0;) { + *cp++ = PACKW4(wp[0],wp[1],wp[2],wp[3]); + wp += samplesperpixel; + } + cp += toskew; + wp += fromskew; + } +} + +/* + * 16-bit packed samples => RGBA w/ unassociated alpha + * (known to have Map == NULL) + */ +DECLAREContigPutFunc(putRGBUAcontig16bittile) +{ + int samplesperpixel = img->samplesperpixel; + uint16 *wp = (uint16 *)pp; + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + uint32 r,g,b,a; + for (x = w; x-- > 0;) { + a = W2B(wp[3]); + r = (a*W2B(wp[0]) + 127) / 255; + g = (a*W2B(wp[1]) + 127) / 255; + b = (a*W2B(wp[2]) + 127) / 255; + *cp++ = PACK4(r,g,b,a); + wp += samplesperpixel; + } + cp += toskew; + wp += fromskew; + } +} + +/* + * 8-bit packed CMYK samples w/o Map => RGB + * + * NB: The conversion of CMYK->RGB is *very* crude. + */ +DECLAREContigPutFunc(putRGBcontig8bitCMYKtile) +{ + int samplesperpixel = img->samplesperpixel; + uint16 r, g, b, k; + + (void) x; (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + UNROLL8(w, NOP, + k = 255 - pp[3]; + r = (k*(255-pp[0]))/255; + g = (k*(255-pp[1]))/255; + b = (k*(255-pp[2]))/255; + *cp++ = PACK(r, g, b); + pp += samplesperpixel); + cp += toskew; + pp += fromskew; + } +} + +/* + * 8-bit packed CMYK samples w/Map => RGB + * + * NB: The conversion of CMYK->RGB is *very* crude. + */ +DECLAREContigPutFunc(putRGBcontig8bitCMYKMaptile) +{ + int samplesperpixel = img->samplesperpixel; + TIFFRGBValue* Map = img->Map; + uint16 r, g, b, k; + + (void) y; + fromskew *= samplesperpixel; + while (h-- > 0) { + for (x = w; x-- > 0;) { + k = 255 - pp[3]; + r = (k*(255-pp[0]))/255; + g = (k*(255-pp[1]))/255; + b = (k*(255-pp[2]))/255; + *cp++ = PACK(Map[r], Map[g], Map[b]); + pp += samplesperpixel; + } + pp += fromskew; + cp += toskew; + } +} + +#define DECLARESepPutFunc(name) \ +static void name(\ + TIFFRGBAImage* img,\ + uint32* cp,\ + uint32 x, uint32 y, \ + uint32 w, uint32 h,\ + int32 fromskew, int32 toskew,\ + unsigned char* r, unsigned char* g, unsigned char* b, unsigned char* a\ +) + +/* + * 8-bit unpacked samples => RGB + */ +DECLARESepPutFunc(putRGBseparate8bittile) +{ + (void) img; (void) x; (void) y; (void) a; + while (h-- > 0) { + UNROLL8(w, NOP, *cp++ = PACK(*r++, *g++, *b++)); + SKEW(r, g, b, fromskew); + cp += toskew; + } +} + +/* + * 8-bit unpacked samples => RGBA w/ associated alpha + */ +DECLARESepPutFunc(putRGBAAseparate8bittile) +{ + (void) img; (void) x; (void) y; + while (h-- > 0) { + UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++)); + SKEW4(r, g, b, a, fromskew); + cp += toskew; + } +} + +/* + * 8-bit unpacked samples => RGBA w/ unassociated alpha + */ +DECLARESepPutFunc(putRGBUAseparate8bittile) +{ + (void) img; (void) y; + while (h-- > 0) { + uint32 rv, gv, bv, av; + for (x = w; x-- > 0;) { + av = *a++; + rv = (av* *r++ + 127) / 255; + gv = (av* *g++ + 127) / 255; + bv = (av* *b++ + 127) / 255; + *cp++ = PACK4(rv,gv,bv,av); + } + SKEW4(r, g, b, a, fromskew); + cp += toskew; + } +} + +/* + * 16-bit unpacked samples => RGB + */ +DECLARESepPutFunc(putRGBseparate16bittile) +{ + uint16 *wr = (uint16*) r; + uint16 *wg = (uint16*) g; + uint16 *wb = (uint16*) b; + (void) img; (void) y; (void) a; + while (h-- > 0) { + for (x = 0; x < w; x++) + *cp++ = PACKW(*wr++,*wg++,*wb++); + SKEW(wr, wg, wb, fromskew); + cp += toskew; + } +} + +/* + * 16-bit unpacked samples => RGBA w/ associated alpha + */ +DECLARESepPutFunc(putRGBAAseparate16bittile) +{ + uint16 *wr = (uint16*) r; + uint16 *wg = (uint16*) g; + uint16 *wb = (uint16*) b; + uint16 *wa = (uint16*) a; + (void) img; (void) y; + while (h-- > 0) { + for (x = 0; x < w; x++) + *cp++ = PACKW4(*wr++,*wg++,*wb++,*wa++); + SKEW4(wr, wg, wb, wa, fromskew); + cp += toskew; + } +} + +/* + * 16-bit unpacked samples => RGBA w/ unassociated alpha + */ +DECLARESepPutFunc(putRGBUAseparate16bittile) +{ + uint16 *wr = (uint16*) r; + uint16 *wg = (uint16*) g; + uint16 *wb = (uint16*) b; + uint16 *wa = (uint16*) a; + (void) img; (void) y; + while (h-- > 0) { + uint32 r,g,b,a; + for (x = w; x-- > 0;) { + a = W2B(*wa++); + r = (a*W2B(*wr++) + 127) / 255; + g = (a*W2B(*wg++) + 127) / 255; + b = (a*W2B(*wb++) + 127) / 255; + *cp++ = PACK4(r,g,b,a); + } + SKEW4(wr, wg, wb, wa, fromskew); + cp += toskew; + } +} + +/* + * 8-bit packed CIE L*a*b 1976 samples => RGB + */ +DECLAREContigPutFunc(putcontig8bitCIELab) +{ + float X, Y, Z; + uint32 r, g, b; + (void) y; + fromskew *= 3; + while (h-- > 0) { + for (x = w; x-- > 0;) { + TIFFCIELabToXYZ(img->cielab, + (unsigned char)pp[0], + (signed char)pp[1], + (signed char)pp[2], + &X, &Y, &Z); + TIFFXYZToRGB(img->cielab, X, Y, Z, &r, &g, &b); + *cp++ = PACK(r, g, b); + pp += 3; + } + cp += toskew; + pp += fromskew; + } +} + +/* + * YCbCr -> RGB conversion and packing routines. + */ + +#define YCbCrtoRGB(dst, Y) { \ + uint32 r, g, b; \ + TIFFYCbCrtoRGB(img->ycbcr, (Y), Cb, Cr, &r, &g, &b); \ + dst = PACK(r, g, b); \ +} + +/* + * 8-bit packed YCbCr samples => RGB + * This function is generic for different sampling sizes, + * and can handle blocks sizes that aren't multiples of the + * sampling size. However, it is substantially less optimized + * than the specific sampling cases. It is used as a fallback + * for difficult blocks. + */ +#ifdef notdef +static void putcontig8bitYCbCrGenericTile( + TIFFRGBAImage* img, + uint32* cp, + uint32 x, uint32 y, + uint32 w, uint32 h, + int32 fromskew, int32 toskew, + unsigned char* pp, + int h_group, + int v_group ) + +{ + uint32* cp1 = cp+w+toskew; + uint32* cp2 = cp1+w+toskew; + uint32* cp3 = cp2+w+toskew; + int32 incr = 3*w+4*toskew; + int32 Cb, Cr; + int group_size = v_group * h_group + 2; + + (void) y; + fromskew = (fromskew * group_size) / h_group; + + for( yy = 0; yy < h; yy++ ) + { + unsigned char *pp_line; + int y_line_group = yy / v_group; + int y_remainder = yy - y_line_group * v_group; + + pp_line = pp + v_line_group * + + + for( xx = 0; xx < w; xx++ ) + { + Cb = pp + } + } + for (; h >= 4; h -= 4) { + x = w>>2; + do { + Cb = pp[16]; + Cr = pp[17]; + + YCbCrtoRGB(cp [0], pp[ 0]); + YCbCrtoRGB(cp [1], pp[ 1]); + YCbCrtoRGB(cp [2], pp[ 2]); + YCbCrtoRGB(cp [3], pp[ 3]); + YCbCrtoRGB(cp1[0], pp[ 4]); + YCbCrtoRGB(cp1[1], pp[ 5]); + YCbCrtoRGB(cp1[2], pp[ 6]); + YCbCrtoRGB(cp1[3], pp[ 7]); + YCbCrtoRGB(cp2[0], pp[ 8]); + YCbCrtoRGB(cp2[1], pp[ 9]); + YCbCrtoRGB(cp2[2], pp[10]); + YCbCrtoRGB(cp2[3], pp[11]); + YCbCrtoRGB(cp3[0], pp[12]); + YCbCrtoRGB(cp3[1], pp[13]); + YCbCrtoRGB(cp3[2], pp[14]); + YCbCrtoRGB(cp3[3], pp[15]); + + cp += 4, cp1 += 4, cp2 += 4, cp3 += 4; + pp += 18; + } while (--x); + cp += incr, cp1 += incr, cp2 += incr, cp3 += incr; + pp += fromskew; + } +} +#endif + +/* + * 8-bit packed YCbCr samples w/ 4,4 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr44tile) +{ + uint32* cp1 = cp+w+toskew; + uint32* cp2 = cp1+w+toskew; + uint32* cp3 = cp2+w+toskew; + int32 incr = 3*w+4*toskew; + + (void) y; + /* adjust fromskew */ + fromskew = (fromskew * 18) / 4; + if ((h & 3) == 0 && (w & 3) == 0) { + for (; h >= 4; h -= 4) { + x = w>>2; + do { + int32 Cb = pp[16]; + int32 Cr = pp[17]; + + YCbCrtoRGB(cp [0], pp[ 0]); + YCbCrtoRGB(cp [1], pp[ 1]); + YCbCrtoRGB(cp [2], pp[ 2]); + YCbCrtoRGB(cp [3], pp[ 3]); + YCbCrtoRGB(cp1[0], pp[ 4]); + YCbCrtoRGB(cp1[1], pp[ 5]); + YCbCrtoRGB(cp1[2], pp[ 6]); + YCbCrtoRGB(cp1[3], pp[ 7]); + YCbCrtoRGB(cp2[0], pp[ 8]); + YCbCrtoRGB(cp2[1], pp[ 9]); + YCbCrtoRGB(cp2[2], pp[10]); + YCbCrtoRGB(cp2[3], pp[11]); + YCbCrtoRGB(cp3[0], pp[12]); + YCbCrtoRGB(cp3[1], pp[13]); + YCbCrtoRGB(cp3[2], pp[14]); + YCbCrtoRGB(cp3[3], pp[15]); + + cp += 4, cp1 += 4, cp2 += 4, cp3 += 4; + pp += 18; + } while (--x); + cp += incr, cp1 += incr, cp2 += incr, cp3 += incr; + pp += fromskew; + } + } else { + while (h > 0) { + for (x = w; x > 0;) { + int32 Cb = pp[16]; + int32 Cr = pp[17]; + switch (x) { + default: + switch (h) { + default: YCbCrtoRGB(cp3[3], pp[15]); /* FALLTHROUGH */ + case 3: YCbCrtoRGB(cp2[3], pp[11]); /* FALLTHROUGH */ + case 2: YCbCrtoRGB(cp1[3], pp[ 7]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [3], pp[ 3]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + case 3: + switch (h) { + default: YCbCrtoRGB(cp3[2], pp[14]); /* FALLTHROUGH */ + case 3: YCbCrtoRGB(cp2[2], pp[10]); /* FALLTHROUGH */ + case 2: YCbCrtoRGB(cp1[2], pp[ 6]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [2], pp[ 2]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + case 2: + switch (h) { + default: YCbCrtoRGB(cp3[1], pp[13]); /* FALLTHROUGH */ + case 3: YCbCrtoRGB(cp2[1], pp[ 9]); /* FALLTHROUGH */ + case 2: YCbCrtoRGB(cp1[1], pp[ 5]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [1], pp[ 1]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + case 1: + switch (h) { + default: YCbCrtoRGB(cp3[0], pp[12]); /* FALLTHROUGH */ + case 3: YCbCrtoRGB(cp2[0], pp[ 8]); /* FALLTHROUGH */ + case 2: YCbCrtoRGB(cp1[0], pp[ 4]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [0], pp[ 0]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + } + if (x < 4) { + cp += x; cp1 += x; cp2 += x; cp3 += x; + x = 0; + } + else { + cp += 4; cp1 += 4; cp2 += 4; cp3 += 4; + x -= 4; + } + pp += 18; + } + if (h <= 4) + break; + h -= 4; + cp += incr, cp1 += incr, cp2 += incr, cp3 += incr; + pp += fromskew; + } + } +} + +/* + * 8-bit packed YCbCr samples w/ 4,2 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr42tile) +{ + uint32* cp1 = cp+w+toskew; + int32 incr = 2*toskew+w; + + (void) y; + fromskew = (fromskew * 10) / 4; + if ((h & 3) == 0 && (w & 1) == 0) { + for (; h >= 2; h -= 2) { + x = w>>2; + do { + int32 Cb = pp[8]; + int32 Cr = pp[9]; + + YCbCrtoRGB(cp [0], pp[0]); + YCbCrtoRGB(cp [1], pp[1]); + YCbCrtoRGB(cp [2], pp[2]); + YCbCrtoRGB(cp [3], pp[3]); + YCbCrtoRGB(cp1[0], pp[4]); + YCbCrtoRGB(cp1[1], pp[5]); + YCbCrtoRGB(cp1[2], pp[6]); + YCbCrtoRGB(cp1[3], pp[7]); + + cp += 4, cp1 += 4; + pp += 10; + } while (--x); + cp += incr, cp1 += incr; + pp += fromskew; + } + } else { + while (h > 0) { + for (x = w; x > 0;) { + int32 Cb = pp[8]; + int32 Cr = pp[9]; + switch (x) { + default: + switch (h) { + default: YCbCrtoRGB(cp1[3], pp[ 7]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [3], pp[ 3]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + case 3: + switch (h) { + default: YCbCrtoRGB(cp1[2], pp[ 6]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [2], pp[ 2]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + case 2: + switch (h) { + default: YCbCrtoRGB(cp1[1], pp[ 5]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [1], pp[ 1]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + case 1: + switch (h) { + default: YCbCrtoRGB(cp1[0], pp[ 4]); /* FALLTHROUGH */ + case 1: YCbCrtoRGB(cp [0], pp[ 0]); /* FALLTHROUGH */ + } /* FALLTHROUGH */ + } + if (x < 4) { + cp += x; cp1 += x; + x = 0; + } + else { + cp += 4; cp1 += 4; + x -= 4; + } + pp += 10; + } + if (h <= 2) + break; + h -= 2; + cp += incr, cp1 += incr; + pp += fromskew; + } + } +} + +/* + * 8-bit packed YCbCr samples w/ 4,1 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr41tile) +{ + (void) y; + /* XXX adjust fromskew */ + do { + x = w>>2; + do { + int32 Cb = pp[4]; + int32 Cr = pp[5]; + + YCbCrtoRGB(cp [0], pp[0]); + YCbCrtoRGB(cp [1], pp[1]); + YCbCrtoRGB(cp [2], pp[2]); + YCbCrtoRGB(cp [3], pp[3]); + + cp += 4; + pp += 6; + } while (--x); + + if( (w&3) != 0 ) + { + int32 Cb = pp[4]; + int32 Cr = pp[5]; + + switch( (w&3) ) { + case 3: YCbCrtoRGB(cp [2], pp[2]); + case 2: YCbCrtoRGB(cp [1], pp[1]); + case 1: YCbCrtoRGB(cp [0], pp[0]); + case 0: break; + } + + cp += (w&3); + pp += 6; + } + + cp += toskew; + pp += fromskew; + } while (--h); + +} + +/* + * 8-bit packed YCbCr samples w/ 2,2 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr22tile) +{ + uint32* cp2; + (void) y; + fromskew = (fromskew / 2) * 6; + cp2 = cp+w+toskew; + while (h>=2) { + x = w; + while (x>=2) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp[1], pp[1]); + YCbCrtoRGB(cp2[0], pp[2]); + YCbCrtoRGB(cp2[1], pp[3]); + cp += 2; + cp2 += 2; + pp += 6; + x -= 2; + } + if (x==1) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp2[0], pp[2]); + cp ++ ; + cp2 ++ ; + pp += 6; + } + cp += toskew*2+w; + cp2 += toskew*2+w; + pp += fromskew; + h-=2; + } + if (h==1) { + x = w; + while (x>=2) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp[1], pp[1]); + cp += 2; + cp2 += 2; + pp += 6; + x -= 2; + } + if (x==1) { + uint32 Cb = pp[4]; + uint32 Cr = pp[5]; + YCbCrtoRGB(cp[0], pp[0]); + } + } +} + +/* + * 8-bit packed YCbCr samples w/ 2,1 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr21tile) +{ + (void) y; + fromskew = (fromskew * 4) / 2; + do { + x = w>>1; + do { + int32 Cb = pp[2]; + int32 Cr = pp[3]; + + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp[1], pp[1]); + + cp += 2; + pp += 4; + } while (--x); + + if( (w&1) != 0 ) + { + int32 Cb = pp[2]; + int32 Cr = pp[3]; + + YCbCrtoRGB(cp[0], pp[0]); + + cp += 1; + pp += 4; + } + + cp += toskew; + pp += fromskew; + } while (--h); +} + +/* + * 8-bit packed YCbCr samples w/ 1,2 subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr12tile) +{ + uint32* cp2; + (void) y; + fromskew = (fromskew / 2) * 4; + cp2 = cp+w+toskew; + while (h>=2) { + x = w; + do { + uint32 Cb = pp[2]; + uint32 Cr = pp[3]; + YCbCrtoRGB(cp[0], pp[0]); + YCbCrtoRGB(cp2[0], pp[1]); + cp ++; + cp2 ++; + pp += 4; + } while (--x); + cp += toskew*2+w; + cp2 += toskew*2+w; + pp += fromskew; + h-=2; + } + if (h==1) { + x = w; + do { + uint32 Cb = pp[2]; + uint32 Cr = pp[3]; + YCbCrtoRGB(cp[0], pp[0]); + cp ++; + pp += 4; + } while (--x); + } +} + +/* + * 8-bit packed YCbCr samples w/ no subsampling => RGB + */ +DECLAREContigPutFunc(putcontig8bitYCbCr11tile) +{ + (void) y; + fromskew *= 3; + do { + x = w; /* was x = w>>1; patched 2000/09/25 warmerda@home.com */ + do { + int32 Cb = pp[1]; + int32 Cr = pp[2]; + + YCbCrtoRGB(*cp++, pp[0]); + + pp += 3; + } while (--x); + cp += toskew; + pp += fromskew; + } while (--h); +} + +/* + * 8-bit packed YCbCr samples w/ no subsampling => RGB + */ +DECLARESepPutFunc(putseparate8bitYCbCr11tile) +{ + (void) y; + (void) a; + /* TODO: naming of input vars is still off, change obfuscating declaration inside define, or resolve obfuscation */ + while (h-- > 0) { + x = w; + do { + uint32 dr, dg, db; + TIFFYCbCrtoRGB(img->ycbcr,*r++,*g++,*b++,&dr,&dg,&db); + *cp++ = PACK(dr,dg,db); + } while (--x); + SKEW(r, g, b, fromskew); + cp += toskew; + } +} +#undef YCbCrtoRGB + +static int +initYCbCrConversion(TIFFRGBAImage* img) +{ + static char module[] = "initYCbCrConversion"; + + float *luma, *refBlackWhite; + + if (img->ycbcr == NULL) { + img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc( + TIFFroundup(sizeof (TIFFYCbCrToRGB), sizeof (long)) + + 4*256*sizeof (TIFFRGBValue) + + 2*256*sizeof (int) + + 3*256*sizeof (int32) + ); + if (img->ycbcr == NULL) { + TIFFErrorExt(img->tif->tif_clientdata, module, + "No space for YCbCr->RGB conversion state"); + return (0); + } + } + + TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRCOEFFICIENTS, &luma); + TIFFGetFieldDefaulted(img->tif, TIFFTAG_REFERENCEBLACKWHITE, + &refBlackWhite); + if (TIFFYCbCrToRGBInit(img->ycbcr, luma, refBlackWhite) < 0) + return(0); + return (1); +} + +static tileContigRoutine +initCIELabConversion(TIFFRGBAImage* img) +{ + static char module[] = "initCIELabConversion"; + + float *whitePoint; + float refWhite[3]; + + if (!img->cielab) { + img->cielab = (TIFFCIELabToRGB *) + _TIFFmalloc(sizeof(TIFFCIELabToRGB)); + if (!img->cielab) { + TIFFErrorExt(img->tif->tif_clientdata, module, + "No space for CIE L*a*b*->RGB conversion state."); + return NULL; + } + } + + TIFFGetFieldDefaulted(img->tif, TIFFTAG_WHITEPOINT, &whitePoint); + refWhite[1] = 100.0F; + refWhite[0] = whitePoint[0] / whitePoint[1] * refWhite[1]; + refWhite[2] = (1.0F - whitePoint[0] - whitePoint[1]) + / whitePoint[1] * refWhite[1]; + if (TIFFCIELabToRGBInit(img->cielab, &display_sRGB, refWhite) < 0) { + TIFFErrorExt(img->tif->tif_clientdata, module, + "Failed to initialize CIE L*a*b*->RGB conversion state."); + _TIFFfree(img->cielab); + return NULL; + } + + return putcontig8bitCIELab; +} + +/* + * Greyscale images with less than 8 bits/sample are handled + * with a table to avoid lots of shifts and masks. The table + * is setup so that put*bwtile (below) can retrieve 8/bitspersample + * pixel values simply by indexing into the table with one + * number. + */ +static int +makebwmap(TIFFRGBAImage* img) +{ + TIFFRGBValue* Map = img->Map; + int bitspersample = img->bitspersample; + int nsamples = 8 / bitspersample; + int i; + uint32* p; + + if( nsamples == 0 ) + nsamples = 1; + + img->BWmap = (uint32**) _TIFFmalloc( + 256*sizeof (uint32 *)+(256*nsamples*sizeof(uint32))); + if (img->BWmap == NULL) { + TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No space for B&W mapping table"); + return (0); + } + p = (uint32*)(img->BWmap + 256); + for (i = 0; i < 256; i++) { + TIFFRGBValue c; + img->BWmap[i] = p; + switch (bitspersample) { +#define GREY(x) c = Map[x]; *p++ = PACK(c,c,c); + case 1: + GREY(i>>7); + GREY((i>>6)&1); + GREY((i>>5)&1); + GREY((i>>4)&1); + GREY((i>>3)&1); + GREY((i>>2)&1); + GREY((i>>1)&1); + GREY(i&1); + break; + case 2: + GREY(i>>6); + GREY((i>>4)&3); + GREY((i>>2)&3); + GREY(i&3); + break; + case 4: + GREY(i>>4); + GREY(i&0xf); + break; + case 8: + case 16: + GREY(i); + break; + } +#undef GREY + } + return (1); +} + +/* + * Construct a mapping table to convert from the range + * of the data samples to [0,255] --for display. This + * process also handles inverting B&W images when needed. + */ +static int +setupMap(TIFFRGBAImage* img) +{ + int32 x, range; + + range = (int32)((1L<<img->bitspersample)-1); + + /* treat 16 bit the same as eight bit */ + if( img->bitspersample == 16 ) + range = (int32) 255; + + img->Map = (TIFFRGBValue*) _TIFFmalloc((range+1) * sizeof (TIFFRGBValue)); + if (img->Map == NULL) { + TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), + "No space for photometric conversion table"); + return (0); + } + if (img->photometric == PHOTOMETRIC_MINISWHITE) { + for (x = 0; x <= range; x++) + img->Map[x] = (TIFFRGBValue) (((range - x) * 255) / range); + } else { + for (x = 0; x <= range; x++) + img->Map[x] = (TIFFRGBValue) ((x * 255) / range); + } + if (img->bitspersample <= 16 && + (img->photometric == PHOTOMETRIC_MINISBLACK || + img->photometric == PHOTOMETRIC_MINISWHITE)) { + /* + * Use photometric mapping table to construct + * unpacking tables for samples <= 8 bits. + */ + if (!makebwmap(img)) + return (0); + /* no longer need Map, free it */ + _TIFFfree(img->Map), img->Map = NULL; + } + return (1); +} + +static int +checkcmap(TIFFRGBAImage* img) +{ + uint16* r = img->redcmap; + uint16* g = img->greencmap; + uint16* b = img->bluecmap; + long n = 1L<<img->bitspersample; + + while (n-- > 0) + if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) + return (16); + return (8); +} + +static void +cvtcmap(TIFFRGBAImage* img) +{ + uint16* r = img->redcmap; + uint16* g = img->greencmap; + uint16* b = img->bluecmap; + long i; + + for (i = (1L<<img->bitspersample)-1; i >= 0; i--) { +#define CVT(x) ((uint16)((x)>>8)) + r[i] = CVT(r[i]); + g[i] = CVT(g[i]); + b[i] = CVT(b[i]); +#undef CVT + } +} + +/* + * Palette images with <= 8 bits/sample are handled + * with a table to avoid lots of shifts and masks. The table + * is setup so that put*cmaptile (below) can retrieve 8/bitspersample + * pixel values simply by indexing into the table with one + * number. + */ +static int +makecmap(TIFFRGBAImage* img) +{ + int bitspersample = img->bitspersample; + int nsamples = 8 / bitspersample; + uint16* r = img->redcmap; + uint16* g = img->greencmap; + uint16* b = img->bluecmap; + uint32 *p; + int i; + + img->PALmap = (uint32**) _TIFFmalloc( + 256*sizeof (uint32 *)+(256*nsamples*sizeof(uint32))); + if (img->PALmap == NULL) { + TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No space for Palette mapping table"); + return (0); + } + p = (uint32*)(img->PALmap + 256); + for (i = 0; i < 256; i++) { + TIFFRGBValue c; + img->PALmap[i] = p; +#define CMAP(x) c = (TIFFRGBValue) x; *p++ = PACK(r[c]&0xff, g[c]&0xff, b[c]&0xff); + switch (bitspersample) { + case 1: + CMAP(i>>7); + CMAP((i>>6)&1); + CMAP((i>>5)&1); + CMAP((i>>4)&1); + CMAP((i>>3)&1); + CMAP((i>>2)&1); + CMAP((i>>1)&1); + CMAP(i&1); + break; + case 2: + CMAP(i>>6); + CMAP((i>>4)&3); + CMAP((i>>2)&3); + CMAP(i&3); + break; + case 4: + CMAP(i>>4); + CMAP(i&0xf); + break; + case 8: + CMAP(i); + break; + } +#undef CMAP + } + return (1); +} + +/* + * Construct any mapping table used + * by the associated put routine. + */ +static int +buildMap(TIFFRGBAImage* img) +{ + switch (img->photometric) { + case PHOTOMETRIC_RGB: + case PHOTOMETRIC_YCBCR: + case PHOTOMETRIC_SEPARATED: + if (img->bitspersample == 8) + break; + /* fall thru... */ + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_MINISWHITE: + if (!setupMap(img)) + return (0); + break; + case PHOTOMETRIC_PALETTE: + /* + * Convert 16-bit colormap to 8-bit (unless it looks + * like an old-style 8-bit colormap). + */ + if (checkcmap(img) == 16) + cvtcmap(img); + else + TIFFWarningExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "Assuming 8-bit colormap"); + /* + * Use mapping table and colormap to construct + * unpacking tables for samples < 8 bits. + */ + if (img->bitspersample <= 8 && !makecmap(img)) + return (0); + break; + } + return (1); +} + +/* + * Select the appropriate conversion routine for packed data. + */ +static int +PickContigCase(TIFFRGBAImage* img) +{ + img->get = TIFFIsTiled(img->tif) ? gtTileContig : gtStripContig; + img->put.contig = NULL; + switch (img->photometric) { + case PHOTOMETRIC_RGB: + switch (img->bitspersample) { + case 8: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + img->put.contig = putRGBAAcontig8bittile; + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.contig = putRGBUAcontig8bittile; + } + else + img->put.contig = putRGBcontig8bittile; + break; + case 16: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + { + img->put.contig = putRGBAAcontig16bittile; + } + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.contig = putRGBUAcontig16bittile; + } + else + { + img->put.contig = putRGBcontig16bittile; + } + break; + } + break; + case PHOTOMETRIC_SEPARATED: + if (buildMap(img)) { + if (img->bitspersample == 8) { + if (!img->Map) + img->put.contig = putRGBcontig8bitCMYKtile; + else + img->put.contig = putRGBcontig8bitCMYKMaptile; + } + } + break; + case PHOTOMETRIC_PALETTE: + if (buildMap(img)) { + switch (img->bitspersample) { + case 8: + img->put.contig = put8bitcmaptile; + break; + case 4: + img->put.contig = put4bitcmaptile; + break; + case 2: + img->put.contig = put2bitcmaptile; + break; + case 1: + img->put.contig = put1bitcmaptile; + break; + } + } + break; + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + if (buildMap(img)) { + switch (img->bitspersample) { + case 16: + img->put.contig = put16bitbwtile; + break; + case 8: + img->put.contig = putgreytile; + break; + case 4: + img->put.contig = put4bitbwtile; + break; + case 2: + img->put.contig = put2bitbwtile; + break; + case 1: + img->put.contig = put1bitbwtile; + break; + } + } + break; + case PHOTOMETRIC_YCBCR: + if (img->bitspersample == 8) + { + if (initYCbCrConversion(img)!=0) + { + /* + * The 6.0 spec says that subsampling must be + * one of 1, 2, or 4, and that vertical subsampling + * must always be <= horizontal subsampling; so + * there are only a few possibilities and we just + * enumerate the cases. + * Joris: added support for the [1,2] case, nonetheless, to accomodate + * some OJPEG files + */ + uint16 SubsamplingHor; + uint16 SubsamplingVer; + TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &SubsamplingHor, &SubsamplingVer); + switch ((SubsamplingHor<<4)|SubsamplingVer) { + case 0x44: + img->put.contig = putcontig8bitYCbCr44tile; + break; + case 0x42: + img->put.contig = putcontig8bitYCbCr42tile; + break; + case 0x41: + img->put.contig = putcontig8bitYCbCr41tile; + break; + case 0x22: + img->put.contig = putcontig8bitYCbCr22tile; + break; + case 0x21: + img->put.contig = putcontig8bitYCbCr21tile; + break; + case 0x12: + img->put.contig = putcontig8bitYCbCr12tile; + break; + case 0x11: + img->put.contig = putcontig8bitYCbCr11tile; + break; + } + } + } + break; + case PHOTOMETRIC_CIELAB: + if (buildMap(img)) { + if (img->bitspersample == 8) + img->put.contig = initCIELabConversion(img); + break; + } + } + return ((img->get!=NULL) && (img->put.contig!=NULL)); +} + +/* + * Select the appropriate conversion routine for unpacked data. + * + * NB: we assume that unpacked single channel data is directed + * to the "packed routines. + */ +static int +PickSeparateCase(TIFFRGBAImage* img) +{ + img->get = TIFFIsTiled(img->tif) ? gtTileSeparate : gtStripSeparate; + img->put.separate = NULL; + switch (img->photometric) { + case PHOTOMETRIC_RGB: + switch (img->bitspersample) { + case 8: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + img->put.separate = putRGBAAseparate8bittile; + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.separate = putRGBUAseparate8bittile; + } + else + img->put.separate = putRGBseparate8bittile; + break; + case 16: + if (img->alpha == EXTRASAMPLE_ASSOCALPHA) + { + img->put.separate = putRGBAAseparate16bittile; + } + else if (img->alpha == EXTRASAMPLE_UNASSALPHA) + { + img->put.separate = putRGBUAseparate16bittile; + } + else + { + img->put.separate = putRGBseparate16bittile; + } + break; + } + break; + case PHOTOMETRIC_YCBCR: + if ((img->bitspersample==8) && (img->samplesperpixel==3)) + { + if (initYCbCrConversion(img)!=0) + { + uint16 hs, vs; + TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs); + switch ((hs<<4)|vs) { + case 0x11: + img->put.separate = putseparate8bitYCbCr11tile; + break; + /* TODO: add other cases here */ + } + } + } + break; + } + return ((img->get!=NULL) && (img->put.separate!=NULL)); +} + +/* + * Read a whole strip off data from the file, and convert to RGBA form. + * If this is the last strip, then it will only contain the portion of + * the strip that is actually within the image space. The result is + * organized in bottom to top form. + */ + + +int +TIFFReadRGBAStrip(TIFF* tif, uint32 row, uint32 * raster ) + +{ + char emsg[1024] = ""; + TIFFRGBAImage img; + int ok; + uint32 rowsperstrip, rows_to_read; + + if( TIFFIsTiled( tif ) ) + { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), + "Can't use TIFFReadRGBAStrip() with tiled file."); + return (0); + } + + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); + if( (row % rowsperstrip) != 0 ) + { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), + "Row passed to TIFFReadRGBAStrip() must be first in a strip."); + return (0); + } + + if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, 0, emsg)) { + + img.row_offset = row; + img.col_offset = 0; + + if( row + rowsperstrip > img.height ) + rows_to_read = img.height - row; + else + rows_to_read = rowsperstrip; + + ok = TIFFRGBAImageGet(&img, raster, img.width, rows_to_read ); + + TIFFRGBAImageEnd(&img); + } else { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg); + ok = 0; + } + + return (ok); +} + +/* + * Read a whole tile off data from the file, and convert to RGBA form. + * The returned RGBA data is organized from bottom to top of tile, + * and may include zeroed areas if the tile extends off the image. + */ + +int +TIFFReadRGBATile(TIFF* tif, uint32 col, uint32 row, uint32 * raster) + +{ + char emsg[1024] = ""; + TIFFRGBAImage img; + int ok; + uint32 tile_xsize, tile_ysize; + uint32 read_xsize, read_ysize; + uint32 i_row; + + /* + * Verify that our request is legal - on a tile file, and on a + * tile boundary. + */ + + if( !TIFFIsTiled( tif ) ) + { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), + "Can't use TIFFReadRGBATile() with stripped file."); + return (0); + } + + TIFFGetFieldDefaulted(tif, TIFFTAG_TILEWIDTH, &tile_xsize); + TIFFGetFieldDefaulted(tif, TIFFTAG_TILELENGTH, &tile_ysize); + if( (col % tile_xsize) != 0 || (row % tile_ysize) != 0 ) + { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), + "Row/col passed to TIFFReadRGBATile() must be top" + "left corner of a tile."); + return (0); + } + + /* + * Setup the RGBA reader. + */ + + if (!TIFFRGBAImageOK(tif, emsg) + || !TIFFRGBAImageBegin(&img, tif, 0, emsg)) { + TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg); + return( 0 ); + } + + /* + * The TIFFRGBAImageGet() function doesn't allow us to get off the + * edge of the image, even to fill an otherwise valid tile. So we + * figure out how much we can read, and fix up the tile buffer to + * a full tile configuration afterwards. + */ + + if( row + tile_ysize > img.height ) + read_ysize = img.height - row; + else + read_ysize = tile_ysize; + + if( col + tile_xsize > img.width ) + read_xsize = img.width - col; + else + read_xsize = tile_xsize; + + /* + * Read the chunk of imagery. + */ + + img.row_offset = row; + img.col_offset = col; + + ok = TIFFRGBAImageGet(&img, raster, read_xsize, read_ysize ); + + TIFFRGBAImageEnd(&img); + + /* + * If our read was incomplete we will need to fix up the tile by + * shifting the data around as if a full tile of data is being returned. + * + * This is all the more complicated because the image is organized in + * bottom to top format. + */ + + if( read_xsize == tile_xsize && read_ysize == tile_ysize ) + return( ok ); + + for( i_row = 0; i_row < read_ysize; i_row++ ) { + memmove( raster + (tile_ysize - i_row - 1) * tile_xsize, + raster + (read_ysize - i_row - 1) * read_xsize, + read_xsize * sizeof(uint32) ); + _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize+read_xsize, + 0, sizeof(uint32) * (tile_xsize - read_xsize) ); + } + + for( i_row = read_ysize; i_row < tile_ysize; i_row++ ) { + _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize, + 0, sizeof(uint32) * tile_xsize ); + } + + return (ok); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_jbig.c b/tiff/libtiff/tif_jbig.c new file mode 100644 index 0000000..c92ee3d --- /dev/null +++ b/tiff/libtiff/tif_jbig.c @@ -0,0 +1,385 @@ +/* $Id: tif_jbig.c,v 1.2.2.3 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * JBIG Compression Algorithm Support. + * Contributed by Lee Howard <faxguy@deanox.com> + * + */ + +#include "tiffiop.h" + +#ifdef JBIG_SUPPORT +#include "jbig.h" + +typedef struct +{ + uint32 recvparams; /* encoded Class 2 session params */ + char* subaddress; /* subaddress string */ + uint32 recvtime; /* time spend receiving in seconds */ + char* faxdcs; /* encoded fax parameters (DCS, Table 2/T.30) */ + + TIFFVGetMethod vgetparent; + TIFFVSetMethod vsetparent; +} JBIGState; + +#define GetJBIGState(tif) ((JBIGState*)(tif)->tif_data) + +#define FIELD_RECVPARAMS (FIELD_CODEC+0) +#define FIELD_SUBADDRESS (FIELD_CODEC+1) +#define FIELD_RECVTIME (FIELD_CODEC+2) +#define FIELD_FAXDCS (FIELD_CODEC+3) + +static const TIFFFieldInfo jbigFieldInfo[] = +{ + {TIFFTAG_FAXRECVPARAMS, 1, 1, TIFF_LONG, FIELD_RECVPARAMS, TRUE, FALSE, "FaxRecvParams"}, + {TIFFTAG_FAXSUBADDRESS, -1, -1, TIFF_ASCII, FIELD_SUBADDRESS, TRUE, FALSE, "FaxSubAddress"}, + {TIFFTAG_FAXRECVTIME, 1, 1, TIFF_LONG, FIELD_RECVTIME, TRUE, FALSE, "FaxRecvTime"}, + {TIFFTAG_FAXDCS, -1, -1, TIFF_ASCII, FIELD_FAXDCS, TRUE, FALSE, "FaxDcs"}, +}; + +static int JBIGSetupDecode(TIFF* tif) +{ + if (TIFFNumberOfStrips(tif) != 1) + { + TIFFError("JBIG", "Multistrip images not supported in decoder"); + return 0; + } + + return 1; +} + +static int JBIGDecode(TIFF* tif, tidata_t buffer, tsize_t size, tsample_t s) +{ + struct jbg_dec_state decoder; + int decodeStatus = 0; + unsigned char* pImage = NULL; + (void) size, (void) s; + + if (isFillOrder(tif, tif->tif_dir.td_fillorder)) + { + TIFFReverseBits(tif->tif_rawdata, tif->tif_rawdatasize); + } + + jbg_dec_init(&decoder); + +#if defined(HAVE_JBG_NEWLEN) + jbg_newlen(tif->tif_rawdata, tif->tif_rawdatasize); + /* + * I do not check the return status of jbg_newlen because even if this + * function fails it does not necessarily mean that decoding the image + * will fail. It is generally only needed for received fax images + * that do not contain the actual length of the image in the BIE + * header. I do not log when an error occurs because that will cause + * problems when converting JBIG encoded TIFF's to + * PostScript. As long as the actual image length is contained in the + * BIE header jbg_dec_in should succeed. + */ +#endif /* HAVE_JBG_NEWLEN */ + + decodeStatus = jbg_dec_in(&decoder, tif->tif_rawdata, + tif->tif_rawdatasize, NULL); + if (JBG_EOK != decodeStatus) + { + /* + * XXX: JBG_EN constant was defined in pre-2.0 releases of the + * JBIG-KIT. Since the 2.0 the error reporting functions were + * changed. We will handle both cases here. + */ + TIFFError("JBIG", "Error (%d) decoding: %s", decodeStatus, +#if defined(JBG_EN) + jbg_strerror(decodeStatus, JBG_EN) +#else + jbg_strerror(decodeStatus) +#endif + ); + return 0; + } + + pImage = jbg_dec_getimage(&decoder, 0); + _TIFFmemcpy(buffer, pImage, jbg_dec_getsize(&decoder)); + jbg_dec_free(&decoder); + return 1; +} + +static int JBIGSetupEncode(TIFF* tif) +{ + if (TIFFNumberOfStrips(tif) != 1) + { + TIFFError("JBIG", "Multistrip images not supported in encoder"); + return 0; + } + + return 1; +} + +static int JBIGCopyEncodedData(TIFF* tif, tidata_t pp, tsize_t cc, tsample_t s) +{ + (void) s; + while (cc > 0) + { + tsize_t n = cc; + + if (tif->tif_rawcc + n > tif->tif_rawdatasize) + { + n = tif->tif_rawdatasize - tif->tif_rawcc; + } + + assert(n > 0); + _TIFFmemcpy(tif->tif_rawcp, pp, n); + tif->tif_rawcp += n; + tif->tif_rawcc += n; + pp += n; + cc -= n; + if (tif->tif_rawcc >= tif->tif_rawdatasize && + !TIFFFlushData1(tif)) + { + return (-1); + } + } + + return (1); +} + +static void JBIGOutputBie(unsigned char* buffer, size_t len, void *userData) +{ + TIFF* tif = (TIFF*)userData; + + if (isFillOrder(tif, tif->tif_dir.td_fillorder)) + { + TIFFReverseBits(buffer, len); + } + + JBIGCopyEncodedData(tif, buffer, len, 0); +} + +static int JBIGEncode(TIFF* tif, tidata_t buffer, tsize_t size, tsample_t s) +{ + TIFFDirectory* dir = &tif->tif_dir; + struct jbg_enc_state encoder; + + (void) size, (void) s; + + jbg_enc_init(&encoder, + dir->td_imagewidth, + dir->td_imagelength, + 1, + &buffer, + JBIGOutputBie, + tif); + /* + * jbg_enc_out does the "real" encoding. As data is encoded, + * JBIGOutputBie is called, which writes the data to the directory. + */ + jbg_enc_out(&encoder); + jbg_enc_free(&encoder); + + return 1; +} + +static void JBIGCleanup(TIFF* tif) +{ + JBIGState *sp = GetJBIGState(tif); + + assert(sp != 0); + + tif->tif_tagmethods.vgetfield = sp->vgetparent; + tif->tif_tagmethods.vsetfield = sp->vsetparent; + + _TIFFfree(tif->tif_data); + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +static void JBIGPrintDir(TIFF* tif, FILE* fd, long flags) +{ + JBIGState* codec = GetJBIGState(tif); + (void)flags; + + if (TIFFFieldSet(tif, FIELD_RECVPARAMS)) + { + fprintf(fd, + " Fax Receive Parameters: %08lx\n", + (unsigned long)codec->recvparams); + } + + if (TIFFFieldSet(tif, FIELD_SUBADDRESS)) + { + fprintf(fd, + " Fax SubAddress: %s\n", + codec->subaddress); + } + + if (TIFFFieldSet(tif, FIELD_RECVTIME)) + { + fprintf(fd, + " Fax Receive Time: %lu secs\n", + (unsigned long)codec->recvtime); + } + + if (TIFFFieldSet(tif, FIELD_FAXDCS)) + { + fprintf(fd, + " Fax DCS: %s\n", + codec->faxdcs); + } +} + +static int JBIGVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + JBIGState* codec = GetJBIGState(tif); + + switch (tag) + { + case TIFFTAG_FAXRECVPARAMS: + *va_arg(ap, uint32*) = codec->recvparams; + break; + + case TIFFTAG_FAXSUBADDRESS: + *va_arg(ap, char**) = codec->subaddress; + break; + + case TIFFTAG_FAXRECVTIME: + *va_arg(ap, uint32*) = codec->recvtime; + break; + + case TIFFTAG_FAXDCS: + *va_arg(ap, char**) = codec->faxdcs; + break; + + default: + return (*codec->vgetparent)(tif, tag, ap); + } + + return 1; +} + +static int JBIGVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + JBIGState* codec = GetJBIGState(tif); + + switch (tag) + { + case TIFFTAG_FAXRECVPARAMS: + codec->recvparams = va_arg(ap, uint32); + break; + + case TIFFTAG_FAXSUBADDRESS: + _TIFFsetString(&codec->subaddress, va_arg(ap, char*)); + break; + + case TIFFTAG_FAXRECVTIME: + codec->recvtime = va_arg(ap, uint32); + break; + + case TIFFTAG_FAXDCS: + _TIFFsetString(&codec->faxdcs, va_arg(ap, char*)); + break; + + default: + return (*codec->vsetparent)(tif, tag, ap); + } + + TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); + tif->tif_flags |= TIFF_DIRTYDIRECT; + return 1; +} + +int TIFFInitJBIG(TIFF* tif, int scheme) +{ + JBIGState* codec = NULL; + + assert(scheme == COMPRESSION_JBIG); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, jbigFieldInfo, + TIFFArrayCount(jbigFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFInitJBIG", + "Merging JBIG codec-specific tags failed"); + return 0; + } + + /* Allocate memory for the JBIGState structure.*/ + tif->tif_data = (tdata_t)_TIFFmalloc(sizeof(JBIGState)); + if (tif->tif_data == NULL) + { + TIFFError("TIFFInitJBIG", "Not enough memory for JBIGState"); + return 0; + } + _TIFFmemset(tif->tif_data, 0, sizeof(JBIGState)); + codec = GetJBIGState(tif); + + /* Initialize codec private fields */ + codec->recvparams = 0; + codec->subaddress = NULL; + codec->faxdcs = NULL; + codec->recvtime = 0; + + /* + * Override parent get/set field methods. + */ + codec->vgetparent = tif->tif_tagmethods.vgetfield; + codec->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vgetfield = JBIGVGetField; + tif->tif_tagmethods.vsetfield = JBIGVSetField; + tif->tif_tagmethods.printdir = JBIGPrintDir; + + /* + * These flags are set so the JBIG Codec can control when to reverse + * bits and when not to and to allow the jbig decoder and bit reverser + * to write to memory when necessary. + */ + tif->tif_flags |= TIFF_NOBITREV; + tif->tif_flags &= ~TIFF_MAPPED; + + /* Setup the function pointers for encode, decode, and cleanup. */ + tif->tif_setupdecode = JBIGSetupDecode; + tif->tif_decodestrip = JBIGDecode; + + tif->tif_setupencode = JBIGSetupEncode; + tif->tif_encodestrip = JBIGEncode; + + tif->tif_cleanup = JBIGCleanup; + + return 1; +} + +#endif /* JBIG_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_jpeg.c b/tiff/libtiff/tif_jpeg.c new file mode 100644 index 0000000..a967827 --- /dev/null +++ b/tiff/libtiff/tif_jpeg.c @@ -0,0 +1,2065 @@ +/* $Id: tif_jpeg.c,v 1.50.2.9 2010-06-14 02:47:16 fwarmerdam Exp $ */ + +/* + * Copyright (c) 1994-1997 Sam Leffler + * Copyright (c) 1994-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#define WIN32_LEAN_AND_MEAN +#define VC_EXTRALEAN + +#include "tiffiop.h" +#ifdef JPEG_SUPPORT + +/* + * TIFF Library + * + * JPEG Compression support per TIFF Technical Note #2 + * (*not* per the original TIFF 6.0 spec). + * + * This file is simply an interface to the libjpeg library written by + * the Independent JPEG Group. You need release 5 or later of the IJG + * code, which you can find on the Internet at ftp.uu.net:/graphics/jpeg/. + * + * Contributed by Tom Lane <tgl@sss.pgh.pa.us>. + */ +#include <setjmp.h> + +int TIFFFillStrip(TIFF*, tstrip_t); +int TIFFFillTile(TIFF*, ttile_t); + +/* We undefine FAR to avoid conflict with JPEG definition */ + +#ifdef FAR +#undef FAR +#endif + +/* + Libjpeg's jmorecfg.h defines INT16 and INT32, but only if XMD_H is + not defined. Unfortunately, the MinGW and Borland compilers include + a typedef for INT32, which causes a conflict. MSVC does not include + a conficting typedef given the headers which are included. +*/ +#if defined(__BORLANDC__) || defined(__MINGW32__) +# define XMD_H 1 +#endif + +/* + The windows RPCNDR.H file defines boolean, but defines it with the + unsigned char size. You should compile JPEG library using appropriate + definitions in jconfig.h header, but many users compile library in wrong + way. That causes errors of the following type: + + "JPEGLib: JPEG parameter struct mismatch: library thinks size is 432, + caller expects 464" + + For such users we wil fix the problem here. See install.doc file from + the JPEG library distribution for details. +*/ + +/* Define "boolean" as unsigned char, not int, per Windows custom. */ +#if defined(WIN32) && !defined(__MINGW32__) +# ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ + typedef unsigned char boolean; +# endif +# define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ +#endif + +#include "jpeglib.h" +#include "jerror.h" + +/* + * We are using width_in_blocks which is supposed to be private to + * libjpeg. Unfortunately, the libjpeg delivered with Cygwin has + * renamed this member to width_in_data_units. Since the header has + * also renamed a define, use that unique define name in order to + * detect the problem header and adjust to suit. + */ +#if defined(D_MAX_DATA_UNITS_IN_MCU) +#define width_in_blocks width_in_data_units +#endif + +/* + * On some machines it may be worthwhile to use _setjmp or sigsetjmp + * in place of plain setjmp. These macros will make it easier. + */ +#define SETJMP(jbuf) setjmp(jbuf) +#define LONGJMP(jbuf,code) longjmp(jbuf,code) +#define JMP_BUF jmp_buf + +typedef struct jpeg_destination_mgr jpeg_destination_mgr; +typedef struct jpeg_source_mgr jpeg_source_mgr; +typedef struct jpeg_error_mgr jpeg_error_mgr; + +/* + * State block for each open TIFF file using + * libjpeg to do JPEG compression/decompression. + * + * libjpeg's visible state is either a jpeg_compress_struct + * or jpeg_decompress_struct depending on which way we + * are going. comm can be used to refer to the fields + * which are common to both. + * + * NB: cinfo is required to be the first member of JPEGState, + * so we can safely cast JPEGState* -> jpeg_xxx_struct* + * and vice versa! + */ +typedef struct { + union { + struct jpeg_compress_struct c; + struct jpeg_decompress_struct d; + struct jpeg_common_struct comm; + } cinfo; /* NB: must be first */ + int cinfo_initialized; + + jpeg_error_mgr err; /* libjpeg error manager */ + JMP_BUF exit_jmpbuf; /* for catching libjpeg failures */ + /* + * The following two members could be a union, but + * they're small enough that it's not worth the effort. + */ + jpeg_destination_mgr dest; /* data dest for compression */ + jpeg_source_mgr src; /* data source for decompression */ + /* private state */ + TIFF* tif; /* back link needed by some code */ + uint16 photometric; /* copy of PhotometricInterpretation */ + uint16 h_sampling; /* luminance sampling factors */ + uint16 v_sampling; + tsize_t bytesperline; /* decompressed bytes per scanline */ + /* pointers to intermediate buffers when processing downsampled data */ + JSAMPARRAY ds_buffer[MAX_COMPONENTS]; + int scancount; /* number of "scanlines" accumulated */ + int samplesperclump; + + TIFFVGetMethod vgetparent; /* super-class method */ + TIFFVSetMethod vsetparent; /* super-class method */ + TIFFPrintMethod printdir; /* super-class method */ + TIFFStripMethod defsparent; /* super-class method */ + TIFFTileMethod deftparent; /* super-class method */ + /* pseudo-tag fields */ + void* jpegtables; /* JPEGTables tag value, or NULL */ + uint32 jpegtables_length; /* number of bytes in same */ + int jpegquality; /* Compression quality level */ + int jpegcolormode; /* Auto RGB<=>YCbCr convert? */ + int jpegtablesmode; /* What to put in JPEGTables */ + + int ycbcrsampling_fetched; + uint32 recvparams; /* encoded Class 2 session params */ + char* subaddress; /* subaddress string */ + uint32 recvtime; /* time spent receiving (secs) */ + char* faxdcs; /* encoded fax parameters (DCS, Table 2/T.30) */ +} JPEGState; + +#define JState(tif) ((JPEGState*)(tif)->tif_data) + +static int JPEGDecode(TIFF*, tidata_t, tsize_t, tsample_t); +static int JPEGDecodeRaw(TIFF*, tidata_t, tsize_t, tsample_t); +static int JPEGEncode(TIFF*, tidata_t, tsize_t, tsample_t); +static int JPEGEncodeRaw(TIFF*, tidata_t, tsize_t, tsample_t); +static int JPEGInitializeLibJPEG( TIFF * tif, + int force_encode, int force_decode ); + +#define FIELD_JPEGTABLES (FIELD_CODEC+0) +#define FIELD_RECVPARAMS (FIELD_CODEC+1) +#define FIELD_SUBADDRESS (FIELD_CODEC+2) +#define FIELD_RECVTIME (FIELD_CODEC+3) +#define FIELD_FAXDCS (FIELD_CODEC+4) + +static const TIFFFieldInfo jpegFieldInfo[] = { + { TIFFTAG_JPEGTABLES, -3,-3, TIFF_UNDEFINED, FIELD_JPEGTABLES, + FALSE, TRUE, "JPEGTables" }, + { TIFFTAG_JPEGQUALITY, 0, 0, TIFF_ANY, FIELD_PSEUDO, + TRUE, FALSE, "" }, + { TIFFTAG_JPEGCOLORMODE, 0, 0, TIFF_ANY, FIELD_PSEUDO, + FALSE, FALSE, "" }, + { TIFFTAG_JPEGTABLESMODE, 0, 0, TIFF_ANY, FIELD_PSEUDO, + FALSE, FALSE, "" }, + /* Specific for JPEG in faxes */ + { TIFFTAG_FAXRECVPARAMS, 1, 1, TIFF_LONG, FIELD_RECVPARAMS, + TRUE, FALSE, "FaxRecvParams" }, + { TIFFTAG_FAXSUBADDRESS, -1,-1, TIFF_ASCII, FIELD_SUBADDRESS, + TRUE, FALSE, "FaxSubAddress" }, + { TIFFTAG_FAXRECVTIME, 1, 1, TIFF_LONG, FIELD_RECVTIME, + TRUE, FALSE, "FaxRecvTime" }, + { TIFFTAG_FAXDCS, -1, -1, TIFF_ASCII, FIELD_FAXDCS, + TRUE, FALSE, "FaxDcs" }, +}; +#define N(a) (sizeof (a) / sizeof (a[0])) + +/* + * libjpeg interface layer. + * + * We use setjmp/longjmp to return control to libtiff + * when a fatal error is encountered within the JPEG + * library. We also direct libjpeg error and warning + * messages through the appropriate libtiff handlers. + */ + +/* + * Error handling routines (these replace corresponding + * IJG routines from jerror.c). These are used for both + * compression and decompression. + */ +static void +TIFFjpeg_error_exit(j_common_ptr cinfo) +{ + JPEGState *sp = (JPEGState *) cinfo; /* NB: cinfo assumed first */ + char buffer[JMSG_LENGTH_MAX]; + + (*cinfo->err->format_message) (cinfo, buffer); + TIFFErrorExt(sp->tif->tif_clientdata, "JPEGLib", "%s", buffer); /* display the error message */ + jpeg_abort(cinfo); /* clean up libjpeg state */ + LONGJMP(sp->exit_jmpbuf, 1); /* return to libtiff caller */ +} + +/* + * This routine is invoked only for warning messages, + * since error_exit does its own thing and trace_level + * is never set > 0. + */ +static void +TIFFjpeg_output_message(j_common_ptr cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + + (*cinfo->err->format_message) (cinfo, buffer); + TIFFWarningExt(((JPEGState *) cinfo)->tif->tif_clientdata, "JPEGLib", "%s", buffer); +} + +/* + * Interface routines. This layer of routines exists + * primarily to limit side-effects from using setjmp. + * Also, normal/error returns are converted into return + * values per libtiff practice. + */ +#define CALLJPEG(sp, fail, op) (SETJMP((sp)->exit_jmpbuf) ? (fail) : (op)) +#define CALLVJPEG(sp, op) CALLJPEG(sp, 0, ((op),1)) + +static int +TIFFjpeg_create_compress(JPEGState* sp) +{ + /* initialize JPEG error handling */ + sp->cinfo.c.err = jpeg_std_error(&sp->err); + sp->err.error_exit = TIFFjpeg_error_exit; + sp->err.output_message = TIFFjpeg_output_message; + + return CALLVJPEG(sp, jpeg_create_compress(&sp->cinfo.c)); +} + +static int +TIFFjpeg_create_decompress(JPEGState* sp) +{ + /* initialize JPEG error handling */ + sp->cinfo.d.err = jpeg_std_error(&sp->err); + sp->err.error_exit = TIFFjpeg_error_exit; + sp->err.output_message = TIFFjpeg_output_message; + + return CALLVJPEG(sp, jpeg_create_decompress(&sp->cinfo.d)); +} + +static int +TIFFjpeg_set_defaults(JPEGState* sp) +{ + return CALLVJPEG(sp, jpeg_set_defaults(&sp->cinfo.c)); +} + +static int +TIFFjpeg_set_colorspace(JPEGState* sp, J_COLOR_SPACE colorspace) +{ + return CALLVJPEG(sp, jpeg_set_colorspace(&sp->cinfo.c, colorspace)); +} + +static int +TIFFjpeg_set_quality(JPEGState* sp, int quality, boolean force_baseline) +{ + return CALLVJPEG(sp, + jpeg_set_quality(&sp->cinfo.c, quality, force_baseline)); +} + +static int +TIFFjpeg_suppress_tables(JPEGState* sp, boolean suppress) +{ + return CALLVJPEG(sp, jpeg_suppress_tables(&sp->cinfo.c, suppress)); +} + +static int +TIFFjpeg_start_compress(JPEGState* sp, boolean write_all_tables) +{ + return CALLVJPEG(sp, + jpeg_start_compress(&sp->cinfo.c, write_all_tables)); +} + +static int +TIFFjpeg_write_scanlines(JPEGState* sp, JSAMPARRAY scanlines, int num_lines) +{ + return CALLJPEG(sp, -1, (int) jpeg_write_scanlines(&sp->cinfo.c, + scanlines, (JDIMENSION) num_lines)); +} + +static int +TIFFjpeg_write_raw_data(JPEGState* sp, JSAMPIMAGE data, int num_lines) +{ + return CALLJPEG(sp, -1, (int) jpeg_write_raw_data(&sp->cinfo.c, + data, (JDIMENSION) num_lines)); +} + +static int +TIFFjpeg_finish_compress(JPEGState* sp) +{ + return CALLVJPEG(sp, jpeg_finish_compress(&sp->cinfo.c)); +} + +static int +TIFFjpeg_write_tables(JPEGState* sp) +{ + return CALLVJPEG(sp, jpeg_write_tables(&sp->cinfo.c)); +} + +static int +TIFFjpeg_read_header(JPEGState* sp, boolean require_image) +{ + return CALLJPEG(sp, -1, jpeg_read_header(&sp->cinfo.d, require_image)); +} + +static int +TIFFjpeg_start_decompress(JPEGState* sp) +{ + return CALLVJPEG(sp, jpeg_start_decompress(&sp->cinfo.d)); +} + +static int +TIFFjpeg_read_scanlines(JPEGState* sp, JSAMPARRAY scanlines, int max_lines) +{ + return CALLJPEG(sp, -1, (int) jpeg_read_scanlines(&sp->cinfo.d, + scanlines, (JDIMENSION) max_lines)); +} + +static int +TIFFjpeg_read_raw_data(JPEGState* sp, JSAMPIMAGE data, int max_lines) +{ + return CALLJPEG(sp, -1, (int) jpeg_read_raw_data(&sp->cinfo.d, + data, (JDIMENSION) max_lines)); +} + +static int +TIFFjpeg_finish_decompress(JPEGState* sp) +{ + return CALLJPEG(sp, -1, (int) jpeg_finish_decompress(&sp->cinfo.d)); +} + +static int +TIFFjpeg_abort(JPEGState* sp) +{ + return CALLVJPEG(sp, jpeg_abort(&sp->cinfo.comm)); +} + +static int +TIFFjpeg_destroy(JPEGState* sp) +{ + return CALLVJPEG(sp, jpeg_destroy(&sp->cinfo.comm)); +} + +static JSAMPARRAY +TIFFjpeg_alloc_sarray(JPEGState* sp, int pool_id, + JDIMENSION samplesperrow, JDIMENSION numrows) +{ + return CALLJPEG(sp, (JSAMPARRAY) NULL, + (*sp->cinfo.comm.mem->alloc_sarray) + (&sp->cinfo.comm, pool_id, samplesperrow, numrows)); +} + +/* + * JPEG library destination data manager. + * These routines direct compressed data from libjpeg into the + * libtiff output buffer. + */ + +static void +std_init_destination(j_compress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + TIFF* tif = sp->tif; + + sp->dest.next_output_byte = (JOCTET*) tif->tif_rawdata; + sp->dest.free_in_buffer = (size_t) tif->tif_rawdatasize; +} + +static boolean +std_empty_output_buffer(j_compress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + TIFF* tif = sp->tif; + + /* the entire buffer has been filled */ + tif->tif_rawcc = tif->tif_rawdatasize; + TIFFFlushData1(tif); + sp->dest.next_output_byte = (JOCTET*) tif->tif_rawdata; + sp->dest.free_in_buffer = (size_t) tif->tif_rawdatasize; + + return (TRUE); +} + +static void +std_term_destination(j_compress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + TIFF* tif = sp->tif; + + tif->tif_rawcp = (tidata_t) sp->dest.next_output_byte; + tif->tif_rawcc = + tif->tif_rawdatasize - (tsize_t) sp->dest.free_in_buffer; + /* NB: libtiff does the final buffer flush */ +} + +static void +TIFFjpeg_data_dest(JPEGState* sp, TIFF* tif) +{ + (void) tif; + sp->cinfo.c.dest = &sp->dest; + sp->dest.init_destination = std_init_destination; + sp->dest.empty_output_buffer = std_empty_output_buffer; + sp->dest.term_destination = std_term_destination; +} + +/* + * Alternate destination manager for outputting to JPEGTables field. + */ + +static void +tables_init_destination(j_compress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + + /* while building, jpegtables_length is allocated buffer size */ + sp->dest.next_output_byte = (JOCTET*) sp->jpegtables; + sp->dest.free_in_buffer = (size_t) sp->jpegtables_length; +} + +static boolean +tables_empty_output_buffer(j_compress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + void* newbuf; + + /* the entire buffer has been filled; enlarge it by 1000 bytes */ + newbuf = _TIFFrealloc((tdata_t) sp->jpegtables, + (tsize_t) (sp->jpegtables_length + 1000)); + if (newbuf == NULL) + ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 100); + sp->dest.next_output_byte = (JOCTET*) newbuf + sp->jpegtables_length; + sp->dest.free_in_buffer = (size_t) 1000; + sp->jpegtables = newbuf; + sp->jpegtables_length += 1000; + return (TRUE); +} + +static void +tables_term_destination(j_compress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + + /* set tables length to number of bytes actually emitted */ + sp->jpegtables_length -= sp->dest.free_in_buffer; +} + +static int +TIFFjpeg_tables_dest(JPEGState* sp, TIFF* tif) +{ + (void) tif; + /* + * Allocate a working buffer for building tables. + * Initial size is 1000 bytes, which is usually adequate. + */ + if (sp->jpegtables) + _TIFFfree(sp->jpegtables); + sp->jpegtables_length = 1000; + sp->jpegtables = (void*) _TIFFmalloc((tsize_t) sp->jpegtables_length); + if (sp->jpegtables == NULL) { + sp->jpegtables_length = 0; + TIFFErrorExt(sp->tif->tif_clientdata, "TIFFjpeg_tables_dest", "No space for JPEGTables"); + return (0); + } + sp->cinfo.c.dest = &sp->dest; + sp->dest.init_destination = tables_init_destination; + sp->dest.empty_output_buffer = tables_empty_output_buffer; + sp->dest.term_destination = tables_term_destination; + return (1); +} + +/* + * JPEG library source data manager. + * These routines supply compressed data to libjpeg. + */ + +static void +std_init_source(j_decompress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + TIFF* tif = sp->tif; + + sp->src.next_input_byte = (const JOCTET*) tif->tif_rawdata; + sp->src.bytes_in_buffer = (size_t) tif->tif_rawcc; +} + +static boolean +std_fill_input_buffer(j_decompress_ptr cinfo) +{ + JPEGState* sp = (JPEGState* ) cinfo; + static const JOCTET dummy_EOI[2] = { 0xFF, JPEG_EOI }; + + /* + * Should never get here since entire strip/tile is + * read into memory before the decompressor is called, + * and thus was supplied by init_source. + */ + WARNMS(cinfo, JWRN_JPEG_EOF); + /* insert a fake EOI marker */ + sp->src.next_input_byte = dummy_EOI; + sp->src.bytes_in_buffer = 2; + return (TRUE); +} + +static void +std_skip_input_data(j_decompress_ptr cinfo, long num_bytes) +{ + JPEGState* sp = (JPEGState*) cinfo; + + if (num_bytes > 0) { + if (num_bytes > (long) sp->src.bytes_in_buffer) { + /* oops, buffer overrun */ + (void) std_fill_input_buffer(cinfo); + } else { + sp->src.next_input_byte += (size_t) num_bytes; + sp->src.bytes_in_buffer -= (size_t) num_bytes; + } + } +} + +static void +std_term_source(j_decompress_ptr cinfo) +{ + /* No work necessary here */ + /* Or must we update tif->tif_rawcp, tif->tif_rawcc ??? */ + /* (if so, need empty tables_term_source!) */ + (void) cinfo; +} + +static void +TIFFjpeg_data_src(JPEGState* sp, TIFF* tif) +{ + (void) tif; + sp->cinfo.d.src = &sp->src; + sp->src.init_source = std_init_source; + sp->src.fill_input_buffer = std_fill_input_buffer; + sp->src.skip_input_data = std_skip_input_data; + sp->src.resync_to_restart = jpeg_resync_to_restart; + sp->src.term_source = std_term_source; + sp->src.bytes_in_buffer = 0; /* for safety */ + sp->src.next_input_byte = NULL; +} + +/* + * Alternate source manager for reading from JPEGTables. + * We can share all the code except for the init routine. + */ + +static void +tables_init_source(j_decompress_ptr cinfo) +{ + JPEGState* sp = (JPEGState*) cinfo; + + sp->src.next_input_byte = (const JOCTET*) sp->jpegtables; + sp->src.bytes_in_buffer = (size_t) sp->jpegtables_length; +} + +static void +TIFFjpeg_tables_src(JPEGState* sp, TIFF* tif) +{ + TIFFjpeg_data_src(sp, tif); + sp->src.init_source = tables_init_source; +} + +/* + * Allocate downsampled-data buffers needed for downsampled I/O. + * We use values computed in jpeg_start_compress or jpeg_start_decompress. + * We use libjpeg's allocator so that buffers will be released automatically + * when done with strip/tile. + * This is also a handy place to compute samplesperclump, bytesperline. + */ +static int +alloc_downsampled_buffers(TIFF* tif, jpeg_component_info* comp_info, + int num_components) +{ + JPEGState* sp = JState(tif); + int ci; + jpeg_component_info* compptr; + JSAMPARRAY buf; + int samples_per_clump = 0; + + for (ci = 0, compptr = comp_info; ci < num_components; + ci++, compptr++) { + samples_per_clump += compptr->h_samp_factor * + compptr->v_samp_factor; + buf = TIFFjpeg_alloc_sarray(sp, JPOOL_IMAGE, + compptr->width_in_blocks * DCTSIZE, + (JDIMENSION) (compptr->v_samp_factor*DCTSIZE)); + if (buf == NULL) + return (0); + sp->ds_buffer[ci] = buf; + } + sp->samplesperclump = samples_per_clump; + return (1); +} + + +/* + * JPEG Decoding. + */ + +static int +JPEGSetupDecode(TIFF* tif) +{ + JPEGState* sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + + JPEGInitializeLibJPEG( tif, 0, 1 ); + + assert(sp != NULL); + assert(sp->cinfo.comm.is_decompressor); + + /* Read JPEGTables if it is present */ + if (TIFFFieldSet(tif,FIELD_JPEGTABLES)) { + TIFFjpeg_tables_src(sp, tif); + if(TIFFjpeg_read_header(sp,FALSE) != JPEG_HEADER_TABLES_ONLY) { + TIFFErrorExt(tif->tif_clientdata, "JPEGSetupDecode", "Bogus JPEGTables field"); + return (0); + } + } + + /* Grab parameters that are same for all strips/tiles */ + sp->photometric = td->td_photometric; + switch (sp->photometric) { + case PHOTOMETRIC_YCBCR: + sp->h_sampling = td->td_ycbcrsubsampling[0]; + sp->v_sampling = td->td_ycbcrsubsampling[1]; + break; + default: + /* TIFF 6.0 forbids subsampling of all other color spaces */ + sp->h_sampling = 1; + sp->v_sampling = 1; + break; + } + + /* Set up for reading normal data */ + TIFFjpeg_data_src(sp, tif); + tif->tif_postdecode = _TIFFNoPostDecode; /* override byte swapping */ + return (1); +} + +/* + * Set up for decoding a strip or tile. + */ +static int +JPEGPreDecode(TIFF* tif, tsample_t s) +{ + JPEGState *sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + static const char module[] = "JPEGPreDecode"; + uint32 segment_width, segment_height; + int downsampled_output; + int ci; + + assert(sp != NULL); + assert(sp->cinfo.comm.is_decompressor); + /* + * Reset decoder state from any previous strip/tile, + * in case application didn't read the whole strip. + */ + if (!TIFFjpeg_abort(sp)) + return (0); + /* + * Read the header for this strip/tile. + */ + if (TIFFjpeg_read_header(sp, TRUE) != JPEG_HEADER_OK) + return (0); + /* + * Check image parameters and set decompression parameters. + */ + segment_width = td->td_imagewidth; + segment_height = td->td_imagelength - tif->tif_row; + if (isTiled(tif)) { + segment_width = td->td_tilewidth; + segment_height = td->td_tilelength; + sp->bytesperline = TIFFTileRowSize(tif); + } else { + if (segment_height > td->td_rowsperstrip) + segment_height = td->td_rowsperstrip; + sp->bytesperline = TIFFOldScanlineSize(tif); + } + if (td->td_planarconfig == PLANARCONFIG_SEPARATE && s > 0) { + /* + * For PC 2, scale down the expected strip/tile size + * to match a downsampled component + */ + segment_width = TIFFhowmany(segment_width, sp->h_sampling); + segment_height = TIFFhowmany(segment_height, sp->v_sampling); + } + if (sp->cinfo.d.image_width < segment_width || + sp->cinfo.d.image_height < segment_height) { + TIFFWarningExt(tif->tif_clientdata, module, + "Improper JPEG strip/tile size, " + "expected %dx%d, got %dx%d", + segment_width, segment_height, + sp->cinfo.d.image_width, + sp->cinfo.d.image_height); + } + if (sp->cinfo.d.image_width > segment_width || + sp->cinfo.d.image_height > segment_height) { + /* + * This case could be dangerous, if the strip or tile size has + * been reported as less than the amount of data jpeg will + * return, some potential security issues arise. Catch this + * case and error out. + */ + TIFFErrorExt(tif->tif_clientdata, module, + "JPEG strip/tile size exceeds expected dimensions," + " expected %dx%d, got %dx%d", + segment_width, segment_height, + sp->cinfo.d.image_width, sp->cinfo.d.image_height); + return (0); + } + if (sp->cinfo.d.num_components != + (td->td_planarconfig == PLANARCONFIG_CONTIG ? + td->td_samplesperpixel : 1)) { + TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG component count"); + return (0); + } +#ifdef JPEG_LIB_MK1 + if (12 != td->td_bitspersample && 8 != td->td_bitspersample) { + TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG data precision"); + return (0); + } + sp->cinfo.d.data_precision = td->td_bitspersample; + sp->cinfo.d.bits_in_jsample = td->td_bitspersample; +#else + if (sp->cinfo.d.data_precision != td->td_bitspersample) { + TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG data precision"); + return (0); + } +#endif + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + /* Component 0 should have expected sampling factors */ + if (sp->cinfo.d.comp_info[0].h_samp_factor != sp->h_sampling || + sp->cinfo.d.comp_info[0].v_samp_factor != sp->v_sampling) { + TIFFWarningExt(tif->tif_clientdata, module, + "Improper JPEG sampling factors %d,%d\n" + "Apparently should be %d,%d.", + sp->cinfo.d.comp_info[0].h_samp_factor, + sp->cinfo.d.comp_info[0].v_samp_factor, + sp->h_sampling, sp->v_sampling); + + /* + * There are potential security issues here + * for decoders that have already allocated + * buffers based on the expected sampling + * factors. Lets check the sampling factors + * dont exceed what we were expecting. + */ + if (sp->cinfo.d.comp_info[0].h_samp_factor + > sp->h_sampling + || sp->cinfo.d.comp_info[0].v_samp_factor + > sp->v_sampling) { + TIFFErrorExt(tif->tif_clientdata, + module, + "Cannot honour JPEG sampling factors" + " that exceed those specified."); + return (0); + } + + /* + * XXX: Files written by the Intergraph software + * has different sampling factors stored in the + * TIFF tags and in the JPEG structures. We will + * try to deduce Intergraph files by the presense + * of the tag 33918. + */ + if (!_TIFFFindFieldInfo(tif, 33918, TIFF_ANY)) { + TIFFWarningExt(tif->tif_clientdata, module, + "Decompressor will try reading with " + "sampling %d,%d.", + sp->cinfo.d.comp_info[0].h_samp_factor, + sp->cinfo.d.comp_info[0].v_samp_factor); + + sp->h_sampling = (uint16) + sp->cinfo.d.comp_info[0].h_samp_factor; + sp->v_sampling = (uint16) + sp->cinfo.d.comp_info[0].v_samp_factor; + } + } + /* Rest should have sampling factors 1,1 */ + for (ci = 1; ci < sp->cinfo.d.num_components; ci++) { + if (sp->cinfo.d.comp_info[ci].h_samp_factor != 1 || + sp->cinfo.d.comp_info[ci].v_samp_factor != 1) { + TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG sampling factors"); + return (0); + } + } + } else { + /* PC 2's single component should have sampling factors 1,1 */ + if (sp->cinfo.d.comp_info[0].h_samp_factor != 1 || + sp->cinfo.d.comp_info[0].v_samp_factor != 1) { + TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG sampling factors"); + return (0); + } + } + downsampled_output = FALSE; + if (td->td_planarconfig == PLANARCONFIG_CONTIG && + sp->photometric == PHOTOMETRIC_YCBCR && + sp->jpegcolormode == JPEGCOLORMODE_RGB) { + /* Convert YCbCr to RGB */ + sp->cinfo.d.jpeg_color_space = JCS_YCbCr; + sp->cinfo.d.out_color_space = JCS_RGB; + } else { + /* Suppress colorspace handling */ + sp->cinfo.d.jpeg_color_space = JCS_UNKNOWN; + sp->cinfo.d.out_color_space = JCS_UNKNOWN; + if (td->td_planarconfig == PLANARCONFIG_CONTIG && + (sp->h_sampling != 1 || sp->v_sampling != 1)) + downsampled_output = TRUE; + /* XXX what about up-sampling? */ + } + if (downsampled_output) { + /* Need to use raw-data interface to libjpeg */ + sp->cinfo.d.raw_data_out = TRUE; + tif->tif_decoderow = JPEGDecodeRaw; + tif->tif_decodestrip = JPEGDecodeRaw; + tif->tif_decodetile = JPEGDecodeRaw; + } else { + /* Use normal interface to libjpeg */ + sp->cinfo.d.raw_data_out = FALSE; + tif->tif_decoderow = JPEGDecode; + tif->tif_decodestrip = JPEGDecode; + tif->tif_decodetile = JPEGDecode; + } + /* Start JPEG decompressor */ + if (!TIFFjpeg_start_decompress(sp)) + return (0); + /* Allocate downsampled-data buffers if needed */ + if (downsampled_output) { + if (!alloc_downsampled_buffers(tif, sp->cinfo.d.comp_info, + sp->cinfo.d.num_components)) + return (0); + sp->scancount = DCTSIZE; /* mark buffer empty */ + } + return (1); +} + +/* + * Decode a chunk of pixels. + * "Standard" case: returned data is not downsampled. + */ +/*ARGSUSED*/ static int +JPEGDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + JPEGState *sp = JState(tif); + tsize_t nrows; + (void) s; + + nrows = cc / sp->bytesperline; + if (cc % sp->bytesperline) + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline not read"); + + if( nrows > (int) sp->cinfo.d.image_height ) + nrows = sp->cinfo.d.image_height; + + /* data is expected to be read in multiples of a scanline */ + if (nrows) + { + JSAMPROW line_work_buf = NULL; + + /* + ** For 6B, only use temporary buffer for 12 bit imagery. + ** For Mk1 always use it. + */ +#if !defined(JPEG_LIB_MK1) + if( sp->cinfo.d.data_precision == 12 ) +#endif + { + line_work_buf = (JSAMPROW) + _TIFFmalloc(sizeof(short) * sp->cinfo.d.output_width + * sp->cinfo.d.num_components ); + } + + do { + if( line_work_buf != NULL ) + { + /* + ** In the MK1 case, we aways read into a 16bit buffer, and then + ** pack down to 12bit or 8bit. In 6B case we only read into 16 + ** bit buffer for 12bit data, which we need to repack. + */ + if (TIFFjpeg_read_scanlines(sp, &line_work_buf, 1) != 1) + return (0); + + if( sp->cinfo.d.data_precision == 12 ) + { + int value_pairs = (sp->cinfo.d.output_width + * sp->cinfo.d.num_components) / 2; + int iPair; + + for( iPair = 0; iPair < value_pairs; iPair++ ) + { + unsigned char *out_ptr = + ((unsigned char *) buf) + iPair * 3; + JSAMPLE *in_ptr = line_work_buf + iPair * 2; + + out_ptr[0] = (in_ptr[0] & 0xff0) >> 4; + out_ptr[1] = ((in_ptr[0] & 0xf) << 4) + | ((in_ptr[1] & 0xf00) >> 8); + out_ptr[2] = ((in_ptr[1] & 0xff) >> 0); + } + } + else if( sp->cinfo.d.data_precision == 8 ) + { + int value_count = (sp->cinfo.d.output_width + * sp->cinfo.d.num_components); + int iValue; + + for( iValue = 0; iValue < value_count; iValue++ ) + { + ((unsigned char *) buf)[iValue] = + line_work_buf[iValue] & 0xff; + } + } + } + else + { + /* + ** In the libjpeg6b 8bit case. We read directly into the + ** TIFF buffer. + */ + JSAMPROW bufptr = (JSAMPROW)buf; + + if (TIFFjpeg_read_scanlines(sp, &bufptr, 1) != 1) + return (0); + } + + ++tif->tif_row; + buf += sp->bytesperline; + cc -= sp->bytesperline; + } while (--nrows > 0); + + if( line_work_buf != NULL ) + _TIFFfree( line_work_buf ); + } + + /* Close down the decompressor if we've finished the strip or tile. */ + return sp->cinfo.d.output_scanline < sp->cinfo.d.output_height + || TIFFjpeg_finish_decompress(sp); +} + +/* + * Decode a chunk of pixels. + * Returned data is downsampled per sampling factors. + */ +/*ARGSUSED*/ static int +JPEGDecodeRaw(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + JPEGState *sp = JState(tif); + tsize_t nrows; + (void) s; + + /* data is expected to be read in multiples of a scanline */ + if ( (nrows = sp->cinfo.d.image_height) ) { + /* Cb,Cr both have sampling factors 1, so this is correct */ + JDIMENSION clumps_per_line = sp->cinfo.d.comp_info[1].downsampled_width; + int samples_per_clump = sp->samplesperclump; + +#ifdef JPEG_LIB_MK1 + unsigned short* tmpbuf = _TIFFmalloc(sizeof(unsigned short) * + sp->cinfo.d.output_width * + sp->cinfo.d.num_components); +#endif + + do { + jpeg_component_info *compptr; + int ci, clumpoffset; + + /* Reload downsampled-data buffer if needed */ + if (sp->scancount >= DCTSIZE) { + int n = sp->cinfo.d.max_v_samp_factor * DCTSIZE; + if (TIFFjpeg_read_raw_data(sp, sp->ds_buffer, n) != n) + return (0); + sp->scancount = 0; + } + /* + * Fastest way to unseparate data is to make one pass + * over the scanline for each row of each component. + */ + clumpoffset = 0; /* first sample in clump */ + for (ci = 0, compptr = sp->cinfo.d.comp_info; + ci < sp->cinfo.d.num_components; + ci++, compptr++) { + int hsamp = compptr->h_samp_factor; + int vsamp = compptr->v_samp_factor; + int ypos; + + for (ypos = 0; ypos < vsamp; ypos++) { + JSAMPLE *inptr = sp->ds_buffer[ci][sp->scancount*vsamp + ypos]; +#ifdef JPEG_LIB_MK1 + JSAMPLE *outptr = (JSAMPLE*)tmpbuf + clumpoffset; +#else + JSAMPLE *outptr = (JSAMPLE*)buf + clumpoffset; +#endif + JDIMENSION nclump; + + if (hsamp == 1) { + /* fast path for at least Cb and Cr */ + for (nclump = clumps_per_line; nclump-- > 0; ) { + outptr[0] = *inptr++; + outptr += samples_per_clump; + } + } else { + int xpos; + + /* general case */ + for (nclump = clumps_per_line; nclump-- > 0; ) { + for (xpos = 0; xpos < hsamp; xpos++) + outptr[xpos] = *inptr++; + outptr += samples_per_clump; + } + } + clumpoffset += hsamp; + } + } + +#ifdef JPEG_LIB_MK1 + { + if (sp->cinfo.d.data_precision == 8) + { + int i=0; + int len = sp->cinfo.d.output_width * sp->cinfo.d.num_components; + for (i=0; i<len; i++) + { + ((unsigned char*)buf)[i] = tmpbuf[i] & 0xff; + } + } + else + { // 12-bit + int value_pairs = (sp->cinfo.d.output_width + * sp->cinfo.d.num_components) / 2; + int iPair; + for( iPair = 0; iPair < value_pairs; iPair++ ) + { + unsigned char *out_ptr = ((unsigned char *) buf) + iPair * 3; + JSAMPLE *in_ptr = tmpbuf + iPair * 2; + out_ptr[0] = (in_ptr[0] & 0xff0) >> 4; + out_ptr[1] = ((in_ptr[0] & 0xf) << 4) + | ((in_ptr[1] & 0xf00) >> 8); + out_ptr[2] = ((in_ptr[1] & 0xff) >> 0); + } + } + } +#endif + + sp->scancount ++; + tif->tif_row += sp->v_sampling; + /* increment/decrement of buf and cc is still incorrect, but should not matter + * TODO: resolve this */ + buf += sp->bytesperline; + cc -= sp->bytesperline; + nrows -= sp->v_sampling; + } while (nrows > 0); + +#ifdef JPEG_LIB_MK1 + _TIFFfree(tmpbuf); +#endif + + } + + /* Close down the decompressor if done. */ + return sp->cinfo.d.output_scanline < sp->cinfo.d.output_height + || TIFFjpeg_finish_decompress(sp); +} + + +/* + * JPEG Encoding. + */ + +static void +unsuppress_quant_table (JPEGState* sp, int tblno) +{ + JQUANT_TBL* qtbl; + + if ((qtbl = sp->cinfo.c.quant_tbl_ptrs[tblno]) != NULL) + qtbl->sent_table = FALSE; +} + +static void +unsuppress_huff_table (JPEGState* sp, int tblno) +{ + JHUFF_TBL* htbl; + + if ((htbl = sp->cinfo.c.dc_huff_tbl_ptrs[tblno]) != NULL) + htbl->sent_table = FALSE; + if ((htbl = sp->cinfo.c.ac_huff_tbl_ptrs[tblno]) != NULL) + htbl->sent_table = FALSE; +} + +static int +prepare_JPEGTables(TIFF* tif) +{ + JPEGState* sp = JState(tif); + + JPEGInitializeLibJPEG( tif, 0, 0 ); + + /* Initialize quant tables for current quality setting */ + if (!TIFFjpeg_set_quality(sp, sp->jpegquality, FALSE)) + return (0); + /* Mark only the tables we want for output */ + /* NB: chrominance tables are currently used only with YCbCr */ + if (!TIFFjpeg_suppress_tables(sp, TRUE)) + return (0); + if (sp->jpegtablesmode & JPEGTABLESMODE_QUANT) { + unsuppress_quant_table(sp, 0); + if (sp->photometric == PHOTOMETRIC_YCBCR) + unsuppress_quant_table(sp, 1); + } + if (sp->jpegtablesmode & JPEGTABLESMODE_HUFF) { + unsuppress_huff_table(sp, 0); + if (sp->photometric == PHOTOMETRIC_YCBCR) + unsuppress_huff_table(sp, 1); + } + /* Direct libjpeg output into jpegtables */ + if (!TIFFjpeg_tables_dest(sp, tif)) + return (0); + /* Emit tables-only datastream */ + if (!TIFFjpeg_write_tables(sp)) + return (0); + + return (1); +} + +static int +JPEGSetupEncode(TIFF* tif) +{ + JPEGState* sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + static const char module[] = "JPEGSetupEncode"; + + JPEGInitializeLibJPEG( tif, 1, 0 ); + + assert(sp != NULL); + assert(!sp->cinfo.comm.is_decompressor); + + /* + * Initialize all JPEG parameters to default values. + * Note that jpeg_set_defaults needs legal values for + * in_color_space and input_components. + */ + sp->cinfo.c.in_color_space = JCS_UNKNOWN; + sp->cinfo.c.input_components = 1; + if (!TIFFjpeg_set_defaults(sp)) + return (0); + /* Set per-file parameters */ + sp->photometric = td->td_photometric; + switch (sp->photometric) { + case PHOTOMETRIC_YCBCR: + sp->h_sampling = td->td_ycbcrsubsampling[0]; + sp->v_sampling = td->td_ycbcrsubsampling[1]; + /* + * A ReferenceBlackWhite field *must* be present since the + * default value is inappropriate for YCbCr. Fill in the + * proper value if application didn't set it. + */ + { + float *ref; + if (!TIFFGetField(tif, TIFFTAG_REFERENCEBLACKWHITE, + &ref)) { + float refbw[6]; + long top = 1L << td->td_bitspersample; + refbw[0] = 0; + refbw[1] = (float)(top-1L); + refbw[2] = (float)(top>>1); + refbw[3] = refbw[1]; + refbw[4] = refbw[2]; + refbw[5] = refbw[1]; + TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, + refbw); + } + } + break; + case PHOTOMETRIC_PALETTE: /* disallowed by Tech Note */ + case PHOTOMETRIC_MASK: + TIFFErrorExt(tif->tif_clientdata, module, + "PhotometricInterpretation %d not allowed for JPEG", + (int) sp->photometric); + return (0); + default: + /* TIFF 6.0 forbids subsampling of all other color spaces */ + sp->h_sampling = 1; + sp->v_sampling = 1; + break; + } + + /* Verify miscellaneous parameters */ + + /* + * This would need work if libtiff ever supports different + * depths for different components, or if libjpeg ever supports + * run-time selection of depth. Neither is imminent. + */ +#ifdef JPEG_LIB_MK1 + /* BITS_IN_JSAMPLE now permits 8 and 12 --- dgilbert */ + if (td->td_bitspersample != 8 && td->td_bitspersample != 12) +#else + if (td->td_bitspersample != BITS_IN_JSAMPLE ) +#endif + { + TIFFErrorExt(tif->tif_clientdata, module, "BitsPerSample %d not allowed for JPEG", + (int) td->td_bitspersample); + return (0); + } + sp->cinfo.c.data_precision = td->td_bitspersample; +#ifdef JPEG_LIB_MK1 + sp->cinfo.c.bits_in_jsample = td->td_bitspersample; +#endif + if (isTiled(tif)) { + if ((td->td_tilelength % (sp->v_sampling * DCTSIZE)) != 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "JPEG tile height must be multiple of %d", + sp->v_sampling * DCTSIZE); + return (0); + } + if ((td->td_tilewidth % (sp->h_sampling * DCTSIZE)) != 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "JPEG tile width must be multiple of %d", + sp->h_sampling * DCTSIZE); + return (0); + } + } else { + if (td->td_rowsperstrip < td->td_imagelength && + (td->td_rowsperstrip % (sp->v_sampling * DCTSIZE)) != 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "RowsPerStrip must be multiple of %d for JPEG", + sp->v_sampling * DCTSIZE); + return (0); + } + } + + /* Create a JPEGTables field if appropriate */ + if (sp->jpegtablesmode & (JPEGTABLESMODE_QUANT|JPEGTABLESMODE_HUFF)) { + if( sp->jpegtables == NULL + || memcmp(sp->jpegtables,"\0\0\0\0\0\0\0\0\0",8) == 0 ) + { + if (!prepare_JPEGTables(tif)) + return (0); + /* Mark the field present */ + /* Can't use TIFFSetField since BEENWRITING is already set! */ + tif->tif_flags |= TIFF_DIRTYDIRECT; + TIFFSetFieldBit(tif, FIELD_JPEGTABLES); + } + } else { + /* We do not support application-supplied JPEGTables, */ + /* so mark the field not present */ + TIFFClrFieldBit(tif, FIELD_JPEGTABLES); + } + + /* Direct libjpeg output to libtiff's output buffer */ + TIFFjpeg_data_dest(sp, tif); + + return (1); +} + +/* + * Set encoding state at the start of a strip or tile. + */ +static int +JPEGPreEncode(TIFF* tif, tsample_t s) +{ + JPEGState *sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + static const char module[] = "JPEGPreEncode"; + uint32 segment_width, segment_height; + int downsampled_input; + + assert(sp != NULL); + assert(!sp->cinfo.comm.is_decompressor); + /* + * Set encoding parameters for this strip/tile. + */ + if (isTiled(tif)) { + segment_width = td->td_tilewidth; + segment_height = td->td_tilelength; + sp->bytesperline = TIFFTileRowSize(tif); + } else { + segment_width = td->td_imagewidth; + segment_height = td->td_imagelength - tif->tif_row; + if (segment_height > td->td_rowsperstrip) + segment_height = td->td_rowsperstrip; + sp->bytesperline = TIFFOldScanlineSize(tif); + } + if (td->td_planarconfig == PLANARCONFIG_SEPARATE && s > 0) { + /* for PC 2, scale down the strip/tile size + * to match a downsampled component + */ + segment_width = TIFFhowmany(segment_width, sp->h_sampling); + segment_height = TIFFhowmany(segment_height, sp->v_sampling); + } + if (segment_width > 65535 || segment_height > 65535) { + TIFFErrorExt(tif->tif_clientdata, module, "Strip/tile too large for JPEG"); + return (0); + } + sp->cinfo.c.image_width = segment_width; + sp->cinfo.c.image_height = segment_height; + downsampled_input = FALSE; + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + sp->cinfo.c.input_components = td->td_samplesperpixel; + if (sp->photometric == PHOTOMETRIC_YCBCR) { + if (sp->jpegcolormode == JPEGCOLORMODE_RGB) { + sp->cinfo.c.in_color_space = JCS_RGB; + } else { + sp->cinfo.c.in_color_space = JCS_YCbCr; + if (sp->h_sampling != 1 || sp->v_sampling != 1) + downsampled_input = TRUE; + } + if (!TIFFjpeg_set_colorspace(sp, JCS_YCbCr)) + return (0); + /* + * Set Y sampling factors; + * we assume jpeg_set_colorspace() set the rest to 1 + */ + sp->cinfo.c.comp_info[0].h_samp_factor = sp->h_sampling; + sp->cinfo.c.comp_info[0].v_samp_factor = sp->v_sampling; + } else { + sp->cinfo.c.in_color_space = JCS_UNKNOWN; + if (!TIFFjpeg_set_colorspace(sp, JCS_UNKNOWN)) + return (0); + /* jpeg_set_colorspace set all sampling factors to 1 */ + } + } else { + sp->cinfo.c.input_components = 1; + sp->cinfo.c.in_color_space = JCS_UNKNOWN; + if (!TIFFjpeg_set_colorspace(sp, JCS_UNKNOWN)) + return (0); + sp->cinfo.c.comp_info[0].component_id = s; + /* jpeg_set_colorspace() set sampling factors to 1 */ + if (sp->photometric == PHOTOMETRIC_YCBCR && s > 0) { + sp->cinfo.c.comp_info[0].quant_tbl_no = 1; + sp->cinfo.c.comp_info[0].dc_tbl_no = 1; + sp->cinfo.c.comp_info[0].ac_tbl_no = 1; + } + } + /* ensure libjpeg won't write any extraneous markers */ + sp->cinfo.c.write_JFIF_header = FALSE; + sp->cinfo.c.write_Adobe_marker = FALSE; + /* set up table handling correctly */ + if (!TIFFjpeg_set_quality(sp, sp->jpegquality, FALSE)) + return (0); + if (! (sp->jpegtablesmode & JPEGTABLESMODE_QUANT)) { + unsuppress_quant_table(sp, 0); + unsuppress_quant_table(sp, 1); + } + if (sp->jpegtablesmode & JPEGTABLESMODE_HUFF) + sp->cinfo.c.optimize_coding = FALSE; + else + sp->cinfo.c.optimize_coding = TRUE; + if (downsampled_input) { + /* Need to use raw-data interface to libjpeg */ + sp->cinfo.c.raw_data_in = TRUE; + tif->tif_encoderow = JPEGEncodeRaw; + tif->tif_encodestrip = JPEGEncodeRaw; + tif->tif_encodetile = JPEGEncodeRaw; + } else { + /* Use normal interface to libjpeg */ + sp->cinfo.c.raw_data_in = FALSE; + tif->tif_encoderow = JPEGEncode; + tif->tif_encodestrip = JPEGEncode; + tif->tif_encodetile = JPEGEncode; + } + /* Start JPEG compressor */ + if (!TIFFjpeg_start_compress(sp, FALSE)) + return (0); + /* Allocate downsampled-data buffers if needed */ + if (downsampled_input) { + if (!alloc_downsampled_buffers(tif, sp->cinfo.c.comp_info, + sp->cinfo.c.num_components)) + return (0); + } + sp->scancount = 0; + + return (1); +} + +/* + * Encode a chunk of pixels. + * "Standard" case: incoming data is not downsampled. + */ +static int +JPEGEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + JPEGState *sp = JState(tif); + tsize_t nrows; + JSAMPROW bufptr[1]; + + (void) s; + assert(sp != NULL); + /* data is expected to be supplied in multiples of a scanline */ + nrows = cc / sp->bytesperline; + if (cc % sp->bytesperline) + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline discarded"); + + /* The last strip will be limited to image size */ + if( !isTiled(tif) && tif->tif_row+nrows > tif->tif_dir.td_imagelength ) + nrows = tif->tif_dir.td_imagelength - tif->tif_row; + + while (nrows-- > 0) { + bufptr[0] = (JSAMPROW) buf; + if (TIFFjpeg_write_scanlines(sp, bufptr, 1) != 1) + return (0); + if (nrows > 0) + tif->tif_row++; + buf += sp->bytesperline; + } + return (1); +} + +/* + * Encode a chunk of pixels. + * Incoming data is expected to be downsampled per sampling factors. + */ +static int +JPEGEncodeRaw(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + JPEGState *sp = JState(tif); + JSAMPLE* inptr; + JSAMPLE* outptr; + tsize_t nrows; + JDIMENSION clumps_per_line, nclump; + int clumpoffset, ci, xpos, ypos; + jpeg_component_info* compptr; + int samples_per_clump = sp->samplesperclump; + tsize_t bytesperclumpline; + + (void) s; + assert(sp != NULL); + /* data is expected to be supplied in multiples of a clumpline */ + /* a clumpline is equivalent to v_sampling desubsampled scanlines */ + /* TODO: the following calculation of bytesperclumpline, should substitute calculation of sp->bytesperline, except that it is per v_sampling lines */ + bytesperclumpline = (((sp->cinfo.c.image_width+sp->h_sampling-1)/sp->h_sampling) + *(sp->h_sampling*sp->v_sampling+2)*sp->cinfo.c.data_precision+7) + /8; + + nrows = ( cc / bytesperclumpline ) * sp->v_sampling; + if (cc % bytesperclumpline) + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline discarded"); + + /* Cb,Cr both have sampling factors 1, so this is correct */ + clumps_per_line = sp->cinfo.c.comp_info[1].downsampled_width; + + while (nrows > 0) { + /* + * Fastest way to separate the data is to make one pass + * over the scanline for each row of each component. + */ + clumpoffset = 0; /* first sample in clump */ + for (ci = 0, compptr = sp->cinfo.c.comp_info; + ci < sp->cinfo.c.num_components; + ci++, compptr++) { + int hsamp = compptr->h_samp_factor; + int vsamp = compptr->v_samp_factor; + int padding = (int) (compptr->width_in_blocks * DCTSIZE - + clumps_per_line * hsamp); + for (ypos = 0; ypos < vsamp; ypos++) { + inptr = ((JSAMPLE*) buf) + clumpoffset; + outptr = sp->ds_buffer[ci][sp->scancount*vsamp + ypos]; + if (hsamp == 1) { + /* fast path for at least Cb and Cr */ + for (nclump = clumps_per_line; nclump-- > 0; ) { + *outptr++ = inptr[0]; + inptr += samples_per_clump; + } + } else { + /* general case */ + for (nclump = clumps_per_line; nclump-- > 0; ) { + for (xpos = 0; xpos < hsamp; xpos++) + *outptr++ = inptr[xpos]; + inptr += samples_per_clump; + } + } + /* pad each scanline as needed */ + for (xpos = 0; xpos < padding; xpos++) { + *outptr = outptr[-1]; + outptr++; + } + clumpoffset += hsamp; + } + } + sp->scancount++; + if (sp->scancount >= DCTSIZE) { + int n = sp->cinfo.c.max_v_samp_factor * DCTSIZE; + if (TIFFjpeg_write_raw_data(sp, sp->ds_buffer, n) != n) + return (0); + sp->scancount = 0; + } + tif->tif_row += sp->v_sampling; + buf += sp->bytesperline; + nrows -= sp->v_sampling; + } + return (1); +} + +/* + * Finish up at the end of a strip or tile. + */ +static int +JPEGPostEncode(TIFF* tif) +{ + JPEGState *sp = JState(tif); + + if (sp->scancount > 0) { + /* + * Need to emit a partial bufferload of downsampled data. + * Pad the data vertically. + */ + int ci, ypos, n; + jpeg_component_info* compptr; + + for (ci = 0, compptr = sp->cinfo.c.comp_info; + ci < sp->cinfo.c.num_components; + ci++, compptr++) { + int vsamp = compptr->v_samp_factor; + tsize_t row_width = compptr->width_in_blocks * DCTSIZE + * sizeof(JSAMPLE); + for (ypos = sp->scancount * vsamp; + ypos < DCTSIZE * vsamp; ypos++) { + _TIFFmemcpy((tdata_t)sp->ds_buffer[ci][ypos], + (tdata_t)sp->ds_buffer[ci][ypos-1], + row_width); + + } + } + n = sp->cinfo.c.max_v_samp_factor * DCTSIZE; + if (TIFFjpeg_write_raw_data(sp, sp->ds_buffer, n) != n) + return (0); + } + + return (TIFFjpeg_finish_compress(JState(tif))); +} + +static void +JPEGCleanup(TIFF* tif) +{ + JPEGState *sp = JState(tif); + + assert(sp != 0); + + tif->tif_tagmethods.vgetfield = sp->vgetparent; + tif->tif_tagmethods.vsetfield = sp->vsetparent; + tif->tif_tagmethods.printdir = sp->printdir; + + if( sp->cinfo_initialized ) + TIFFjpeg_destroy(sp); /* release libjpeg resources */ + if (sp->jpegtables) /* tag value */ + _TIFFfree(sp->jpegtables); + _TIFFfree(tif->tif_data); /* release local state */ + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +static void +JPEGResetUpsampled( TIFF* tif ) +{ + JPEGState* sp = JState(tif); + TIFFDirectory* td = &tif->tif_dir; + + /* + * Mark whether returned data is up-sampled or not so TIFFStripSize + * and TIFFTileSize return values that reflect the true amount of + * data. + */ + tif->tif_flags &= ~TIFF_UPSAMPLED; + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + if (td->td_photometric == PHOTOMETRIC_YCBCR && + sp->jpegcolormode == JPEGCOLORMODE_RGB) { + tif->tif_flags |= TIFF_UPSAMPLED; + } else { +#ifdef notdef + if (td->td_ycbcrsubsampling[0] != 1 || + td->td_ycbcrsubsampling[1] != 1) + ; /* XXX what about up-sampling? */ +#endif + } + } + + /* + * Must recalculate cached tile size in case sampling state changed. + * Should we really be doing this now if image size isn't set? + */ + if( tif->tif_tilesize > 0 ) + tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; + + if(tif->tif_scanlinesize > 0 ) + tif->tif_scanlinesize = TIFFScanlineSize(tif); +} + +static int +JPEGVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + JPEGState* sp = JState(tif); + const TIFFFieldInfo* fip; + uint32 v32; + + assert(sp != NULL); + + switch (tag) { + case TIFFTAG_JPEGTABLES: + v32 = va_arg(ap, uint32); + if (v32 == 0) { + /* XXX */ + return (0); + } + _TIFFsetByteArray(&sp->jpegtables, va_arg(ap, void*), + (long) v32); + sp->jpegtables_length = v32; + TIFFSetFieldBit(tif, FIELD_JPEGTABLES); + break; + case TIFFTAG_JPEGQUALITY: + sp->jpegquality = va_arg(ap, int); + return (1); /* pseudo tag */ + case TIFFTAG_JPEGCOLORMODE: + sp->jpegcolormode = va_arg(ap, int); + JPEGResetUpsampled( tif ); + return (1); /* pseudo tag */ + case TIFFTAG_PHOTOMETRIC: + { + int ret_value = (*sp->vsetparent)(tif, tag, ap); + JPEGResetUpsampled( tif ); + return ret_value; + } + case TIFFTAG_JPEGTABLESMODE: + sp->jpegtablesmode = va_arg(ap, int); + return (1); /* pseudo tag */ + case TIFFTAG_YCBCRSUBSAMPLING: + /* mark the fact that we have a real ycbcrsubsampling! */ + sp->ycbcrsampling_fetched = 1; + /* should we be recomputing upsampling info here? */ + return (*sp->vsetparent)(tif, tag, ap); + case TIFFTAG_FAXRECVPARAMS: + sp->recvparams = va_arg(ap, uint32); + break; + case TIFFTAG_FAXSUBADDRESS: + _TIFFsetString(&sp->subaddress, va_arg(ap, char*)); + break; + case TIFFTAG_FAXRECVTIME: + sp->recvtime = va_arg(ap, uint32); + break; + case TIFFTAG_FAXDCS: + _TIFFsetString(&sp->faxdcs, va_arg(ap, char*)); + break; + default: + return (*sp->vsetparent)(tif, tag, ap); + } + + if ((fip = _TIFFFieldWithTag(tif, tag))) { + TIFFSetFieldBit(tif, fip->field_bit); + } else { + return (0); + } + + tif->tif_flags |= TIFF_DIRTYDIRECT; + return (1); +} + +/* + * Some JPEG-in-TIFF produces do not emit the YCBCRSUBSAMPLING values in + * the TIFF tags, but still use non-default (2,2) values within the jpeg + * data stream itself. In order for TIFF applications to work properly + * - for instance to get the strip buffer size right - it is imperative + * that the subsampling be available before we start reading the image + * data normally. This function will attempt to load the first strip in + * order to get the sampling values from the jpeg data stream. Various + * hacks are various places are done to ensure this function gets called + * before the td_ycbcrsubsampling values are used from the directory structure, + * including calling TIFFGetField() for the YCBCRSUBSAMPLING field from + * TIFFStripSize(), and the printing code in tif_print.c. + * + * Note that JPEGPreDeocode() will produce a fairly loud warning when the + * discovered sampling does not match the default sampling (2,2) or whatever + * was actually in the tiff tags. + * + * Problems: + * o This code will cause one whole strip/tile of compressed data to be + * loaded just to get the tags right, even if the imagery is never read. + * It would be more efficient to just load a bit of the header, and + * initialize things from that. + * + * See the bug in bugzilla for details: + * + * http://bugzilla.remotesensing.org/show_bug.cgi?id=168 + * + * Frank Warmerdam, July 2002 + */ + +static void +JPEGFixupTestSubsampling( TIFF * tif ) +{ +#ifdef CHECK_JPEG_YCBCR_SUBSAMPLING + JPEGState *sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + + JPEGInitializeLibJPEG( tif, 0, 0 ); + + /* + * Some JPEG-in-TIFF files don't provide the ycbcrsampling tags, + * and use a sampling schema other than the default 2,2. To handle + * this we actually have to scan the header of a strip or tile of + * jpeg data to get the sampling. + */ + if( !sp->cinfo.comm.is_decompressor + || sp->ycbcrsampling_fetched + || td->td_photometric != PHOTOMETRIC_YCBCR ) + return; + + sp->ycbcrsampling_fetched = 1; + if( TIFFIsTiled( tif ) ) + { + if( !TIFFFillTile( tif, 0 ) ) + return; + } + else + { + if( !TIFFFillStrip( tif, 0 ) ) + return; + } + + TIFFSetField( tif, TIFFTAG_YCBCRSUBSAMPLING, + (uint16) sp->h_sampling, (uint16) sp->v_sampling ); + + /* + ** We want to clear the loaded strip so the application has time + ** to set JPEGCOLORMODE or other behavior modifiers. This essentially + ** undoes the JPEGPreDecode triggers by TIFFFileStrip(). (#1936) + */ + tif->tif_curstrip = -1; + +#endif /* CHECK_JPEG_YCBCR_SUBSAMPLING */ +} + +static int +JPEGVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + JPEGState* sp = JState(tif); + + assert(sp != NULL); + + switch (tag) { + case TIFFTAG_JPEGTABLES: + *va_arg(ap, uint32*) = sp->jpegtables_length; + *va_arg(ap, void**) = sp->jpegtables; + break; + case TIFFTAG_JPEGQUALITY: + *va_arg(ap, int*) = sp->jpegquality; + break; + case TIFFTAG_JPEGCOLORMODE: + *va_arg(ap, int*) = sp->jpegcolormode; + break; + case TIFFTAG_JPEGTABLESMODE: + *va_arg(ap, int*) = sp->jpegtablesmode; + break; + case TIFFTAG_YCBCRSUBSAMPLING: + JPEGFixupTestSubsampling( tif ); + return (*sp->vgetparent)(tif, tag, ap); + case TIFFTAG_FAXRECVPARAMS: + *va_arg(ap, uint32*) = sp->recvparams; + break; + case TIFFTAG_FAXSUBADDRESS: + *va_arg(ap, char**) = sp->subaddress; + break; + case TIFFTAG_FAXRECVTIME: + *va_arg(ap, uint32*) = sp->recvtime; + break; + case TIFFTAG_FAXDCS: + *va_arg(ap, char**) = sp->faxdcs; + break; + default: + return (*sp->vgetparent)(tif, tag, ap); + } + return (1); +} + +static void +JPEGPrintDir(TIFF* tif, FILE* fd, long flags) +{ + JPEGState* sp = JState(tif); + + assert(sp != NULL); + + (void) flags; + if (TIFFFieldSet(tif,FIELD_JPEGTABLES)) + fprintf(fd, " JPEG Tables: (%lu bytes)\n", + (unsigned long) sp->jpegtables_length); + if (TIFFFieldSet(tif,FIELD_RECVPARAMS)) + fprintf(fd, " Fax Receive Parameters: %08lx\n", + (unsigned long) sp->recvparams); + if (TIFFFieldSet(tif,FIELD_SUBADDRESS)) + fprintf(fd, " Fax SubAddress: %s\n", sp->subaddress); + if (TIFFFieldSet(tif,FIELD_RECVTIME)) + fprintf(fd, " Fax Receive Time: %lu secs\n", + (unsigned long) sp->recvtime); + if (TIFFFieldSet(tif,FIELD_FAXDCS)) + fprintf(fd, " Fax DCS: %s\n", sp->faxdcs); +} + +static uint32 +JPEGDefaultStripSize(TIFF* tif, uint32 s) +{ + JPEGState* sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + + s = (*sp->defsparent)(tif, s); + if (s < td->td_imagelength) + s = TIFFroundup(s, td->td_ycbcrsubsampling[1] * DCTSIZE); + return (s); +} + +static void +JPEGDefaultTileSize(TIFF* tif, uint32* tw, uint32* th) +{ + JPEGState* sp = JState(tif); + TIFFDirectory *td = &tif->tif_dir; + + (*sp->deftparent)(tif, tw, th); + *tw = TIFFroundup(*tw, td->td_ycbcrsubsampling[0] * DCTSIZE); + *th = TIFFroundup(*th, td->td_ycbcrsubsampling[1] * DCTSIZE); +} + +/* + * The JPEG library initialized used to be done in TIFFInitJPEG(), but + * now that we allow a TIFF file to be opened in update mode it is necessary + * to have some way of deciding whether compression or decompression is + * desired other than looking at tif->tif_mode. We accomplish this by + * examining {TILE/STRIP}BYTECOUNTS to see if there is a non-zero entry. + * If so, we assume decompression is desired. + * + * This is tricky, because TIFFInitJPEG() is called while the directory is + * being read, and generally speaking the BYTECOUNTS tag won't have been read + * at that point. So we try to defer jpeg library initialization till we + * do have that tag ... basically any access that might require the compressor + * or decompressor that occurs after the reading of the directory. + * + * In an ideal world compressors or decompressors would be setup + * at the point where a single tile or strip was accessed (for read or write) + * so that stuff like update of missing tiles, or replacement of tiles could + * be done. However, we aren't trying to crack that nut just yet ... + * + * NFW, Feb 3rd, 2003. + */ + +static int JPEGInitializeLibJPEG( TIFF * tif, int force_encode, int force_decode ) +{ + JPEGState* sp = JState(tif); + uint32 *byte_counts = NULL; + int data_is_empty = TRUE; + int decompress; + + + if(sp->cinfo_initialized) + { + if( force_encode && sp->cinfo.comm.is_decompressor ) + TIFFjpeg_destroy( sp ); + else if( force_decode && !sp->cinfo.comm.is_decompressor ) + TIFFjpeg_destroy( sp ); + else + return 1; + + sp->cinfo_initialized = 0; + } + + /* + * Do we have tile data already? Make sure we initialize the + * the state in decompressor mode if we have tile data, even if we + * are not in read-only file access mode. + */ + if( TIFFIsTiled( tif ) + && TIFFGetField( tif, TIFFTAG_TILEBYTECOUNTS, &byte_counts ) + && byte_counts != NULL ) + { + data_is_empty = byte_counts[0] == 0; + } + if( !TIFFIsTiled( tif ) + && TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &byte_counts) + && byte_counts != NULL ) + { + data_is_empty = byte_counts[0] == 0; + } + + if( force_decode ) + decompress = 1; + else if( force_encode ) + decompress = 0; + else if( tif->tif_mode == O_RDONLY ) + decompress = 1; + else if( data_is_empty ) + decompress = 0; + else + decompress = 1; + + /* + * Initialize libjpeg. + */ + if ( decompress ) { + if (!TIFFjpeg_create_decompress(sp)) + return (0); + + } else { + if (!TIFFjpeg_create_compress(sp)) + return (0); + } + + sp->cinfo_initialized = TRUE; + + return 1; +} + +int +TIFFInitJPEG(TIFF* tif, int scheme) +{ + JPEGState* sp; + + assert(scheme == COMPRESSION_JPEG); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, jpegFieldInfo, N(jpegFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, + "TIFFInitJPEG", + "Merging JPEG codec-specific tags failed"); + return 0; + } + + /* + * Allocate state block so tag methods have storage to record values. + */ + tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (JPEGState)); + + if (tif->tif_data == NULL) { + TIFFErrorExt(tif->tif_clientdata, + "TIFFInitJPEG", "No space for JPEG state block"); + return 0; + } + _TIFFmemset(tif->tif_data, 0, sizeof(JPEGState)); + + sp = JState(tif); + sp->tif = tif; /* back link */ + + /* + * Override parent get/set field methods. + */ + sp->vgetparent = tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield = JPEGVGetField; /* hook for codec tags */ + sp->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield = JPEGVSetField; /* hook for codec tags */ + sp->printdir = tif->tif_tagmethods.printdir; + tif->tif_tagmethods.printdir = JPEGPrintDir; /* hook for codec tags */ + + /* Default values for codec-specific fields */ + sp->jpegtables = NULL; + sp->jpegtables_length = 0; + sp->jpegquality = 75; /* Default IJG quality */ + sp->jpegcolormode = JPEGCOLORMODE_RAW; + sp->jpegtablesmode = JPEGTABLESMODE_QUANT | JPEGTABLESMODE_HUFF; + + sp->recvparams = 0; + sp->subaddress = NULL; + sp->faxdcs = NULL; + + sp->ycbcrsampling_fetched = 0; + + /* + * Install codec methods. + */ + tif->tif_setupdecode = JPEGSetupDecode; + tif->tif_predecode = JPEGPreDecode; + tif->tif_decoderow = JPEGDecode; + tif->tif_decodestrip = JPEGDecode; + tif->tif_decodetile = JPEGDecode; + tif->tif_setupencode = JPEGSetupEncode; + tif->tif_preencode = JPEGPreEncode; + tif->tif_postencode = JPEGPostEncode; + tif->tif_encoderow = JPEGEncode; + tif->tif_encodestrip = JPEGEncode; + tif->tif_encodetile = JPEGEncode; + tif->tif_cleanup = JPEGCleanup; + sp->defsparent = tif->tif_defstripsize; + tif->tif_defstripsize = JPEGDefaultStripSize; + sp->deftparent = tif->tif_deftilesize; + tif->tif_deftilesize = JPEGDefaultTileSize; + tif->tif_flags |= TIFF_NOBITREV; /* no bit reversal, please */ + + sp->cinfo_initialized = FALSE; + + /* + ** Create a JPEGTables field if no directory has yet been created. + ** We do this just to ensure that sufficient space is reserved for + ** the JPEGTables field. It will be properly created the right + ** size later. + */ + if( tif->tif_diroff == 0 ) + { +#define SIZE_OF_JPEGTABLES 2000 +/* +The following line assumes incorrectly that all JPEG-in-TIFF files will have +a JPEGTABLES tag generated and causes null-filled JPEGTABLES tags to be written +when the JPEG data is placed with TIFFWriteRawStrip. The field bit should be +set, anyway, later when actual JPEGTABLES header is generated, so removing it +here hopefully is harmless. + TIFFSetFieldBit(tif, FIELD_JPEGTABLES); +*/ + sp->jpegtables_length = SIZE_OF_JPEGTABLES; + sp->jpegtables = (void *) _TIFFmalloc(sp->jpegtables_length); + _TIFFmemset(sp->jpegtables, 0, SIZE_OF_JPEGTABLES); +#undef SIZE_OF_JPEGTABLES + } + + /* + * Mark the TIFFTAG_YCBCRSAMPLES as present even if it is not + * see: JPEGFixupTestSubsampling(). + */ + TIFFSetFieldBit( tif, FIELD_YCBCRSUBSAMPLING ); + + return 1; +} +#endif /* JPEG_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_luv.c b/tiff/libtiff/tif_luv.c new file mode 100644 index 0000000..eb622b9 --- /dev/null +++ b/tiff/libtiff/tif_luv.c @@ -0,0 +1,1629 @@ +/* $Id: tif_luv.c,v 1.17.2.4 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1997 Greg Ward Larson + * Copyright (c) 1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler, Greg Larson and Silicon Graphics may not be used in any + * advertising or publicity relating to the software without the specific, + * prior written permission of Sam Leffler, Greg Larson and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER, GREG LARSON OR SILICON GRAPHICS BE LIABLE + * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef LOGLUV_SUPPORT + +/* + * TIFF Library. + * LogLuv compression support for high dynamic range images. + * + * Contributed by Greg Larson. + * + * LogLuv image support uses the TIFF library to store 16 or 10-bit + * log luminance values with 8 bits each of u and v or a 14-bit index. + * + * The codec can take as input and produce as output 32-bit IEEE float values + * as well as 16-bit integer values. A 16-bit luminance is interpreted + * as a sign bit followed by a 15-bit integer that is converted + * to and from a linear magnitude using the transformation: + * + * L = 2^( (Le+.5)/256 - 64 ) # real from 15-bit + * + * Le = floor( 256*(log2(L) + 64) ) # 15-bit from real + * + * The actual conversion to world luminance units in candelas per sq. meter + * requires an additional multiplier, which is stored in the TIFFTAG_STONITS. + * This value is usually set such that a reasonable exposure comes from + * clamping decoded luminances above 1 to 1 in the displayed image. + * + * The 16-bit values for u and v may be converted to real values by dividing + * each by 32768. (This allows for negative values, which aren't useful as + * far as we know, but are left in case of future improvements in human + * color vision.) + * + * Conversion from (u,v), which is actually the CIE (u',v') system for + * you color scientists, is accomplished by the following transformation: + * + * u = 4*x / (-2*x + 12*y + 3) + * v = 9*y / (-2*x + 12*y + 3) + * + * x = 9*u / (6*u - 16*v + 12) + * y = 4*v / (6*u - 16*v + 12) + * + * This process is greatly simplified by passing 32-bit IEEE floats + * for each of three CIE XYZ coordinates. The codec then takes care + * of conversion to and from LogLuv, though the application is still + * responsible for interpreting the TIFFTAG_STONITS calibration factor. + * + * By definition, a CIE XYZ vector of [1 1 1] corresponds to a neutral white + * point of (x,y)=(1/3,1/3). However, most color systems assume some other + * white point, such as D65, and an absolute color conversion to XYZ then + * to another color space with a different white point may introduce an + * unwanted color cast to the image. It is often desirable, therefore, to + * perform a white point conversion that maps the input white to [1 1 1] + * in XYZ, then record the original white point using the TIFFTAG_WHITEPOINT + * tag value. A decoder that demands absolute color calibration may use + * this white point tag to get back the original colors, but usually it + * will be ignored and the new white point will be used instead that + * matches the output color space. + * + * Pixel information is compressed into one of two basic encodings, depending + * on the setting of the compression tag, which is one of COMPRESSION_SGILOG + * or COMPRESSION_SGILOG24. For COMPRESSION_SGILOG, greyscale data is + * stored as: + * + * 1 15 + * |-+---------------| + * + * COMPRESSION_SGILOG color data is stored as: + * + * 1 15 8 8 + * |-+---------------|--------+--------| + * S Le ue ve + * + * For the 24-bit COMPRESSION_SGILOG24 color format, the data is stored as: + * + * 10 14 + * |----------|--------------| + * Le' Ce + * + * There is no sign bit in the 24-bit case, and the (u,v) chromaticity is + * encoded as an index for optimal color resolution. The 10 log bits are + * defined by the following conversions: + * + * L = 2^((Le'+.5)/64 - 12) # real from 10-bit + * + * Le' = floor( 64*(log2(L) + 12) ) # 10-bit from real + * + * The 10 bits of the smaller format may be converted into the 15 bits of + * the larger format by multiplying by 4 and adding 13314. Obviously, + * a smaller range of magnitudes is covered (about 5 orders of magnitude + * instead of 38), and the lack of a sign bit means that negative luminances + * are not allowed. (Well, they aren't allowed in the real world, either, + * but they are useful for certain types of image processing.) + * + * The desired user format is controlled by the setting the internal + * pseudo tag TIFFTAG_SGILOGDATAFMT to one of: + * SGILOGDATAFMT_FLOAT = IEEE 32-bit float XYZ values + * SGILOGDATAFMT_16BIT = 16-bit integer encodings of logL, u and v + * Raw data i/o is also possible using: + * SGILOGDATAFMT_RAW = 32-bit unsigned integer with encoded pixel + * In addition, the following decoding is provided for ease of display: + * SGILOGDATAFMT_8BIT = 8-bit default RGB gamma-corrected values + * + * For grayscale images, we provide the following data formats: + * SGILOGDATAFMT_FLOAT = IEEE 32-bit float Y values + * SGILOGDATAFMT_16BIT = 16-bit integer w/ encoded luminance + * SGILOGDATAFMT_8BIT = 8-bit gray monitor values + * + * Note that the COMPRESSION_SGILOG applies a simple run-length encoding + * scheme by separating the logL, u and v bytes for each row and applying + * a PackBits type of compression. Since the 24-bit encoding is not + * adaptive, the 32-bit color format takes less space in many cases. + * + * Further control is provided over the conversion from higher-resolution + * formats to final encoded values through the pseudo tag + * TIFFTAG_SGILOGENCODE: + * SGILOGENCODE_NODITHER = do not dither encoded values + * SGILOGENCODE_RANDITHER = apply random dithering during encoding + * + * The default value of this tag is SGILOGENCODE_NODITHER for + * COMPRESSION_SGILOG to maximize run-length encoding and + * SGILOGENCODE_RANDITHER for COMPRESSION_SGILOG24 to turn + * quantization errors into noise. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> + +/* + * State block for each open TIFF + * file using LogLuv compression/decompression. + */ +typedef struct logLuvState LogLuvState; + +struct logLuvState { + int user_datafmt; /* user data format */ + int encode_meth; /* encoding method */ + int pixel_size; /* bytes per pixel */ + + tidata_t* tbuf; /* translation buffer */ + int tbuflen; /* buffer length */ + void (*tfunc)(LogLuvState*, tidata_t, int); + + TIFFVSetMethod vgetparent; /* super-class method */ + TIFFVSetMethod vsetparent; /* super-class method */ +}; + +#define DecoderState(tif) ((LogLuvState*) (tif)->tif_data) +#define EncoderState(tif) ((LogLuvState*) (tif)->tif_data) + +#define SGILOGDATAFMT_UNKNOWN -1 + +#define MINRUN 4 /* minimum run length */ + +/* + * Decode a string of 16-bit gray pixels. + */ +static int +LogL16Decode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) +{ + LogLuvState* sp = DecoderState(tif); + int shft, i, npixels; + unsigned char* bp; + int16* tp; + int16 b; + int cc, rc; + + assert(s == 0); + assert(sp != NULL); + + npixels = occ / sp->pixel_size; + + if (sp->user_datafmt == SGILOGDATAFMT_16BIT) + tp = (int16*) op; + else { + assert(sp->tbuflen >= npixels); + tp = (int16*) sp->tbuf; + } + _TIFFmemset((tdata_t) tp, 0, npixels*sizeof (tp[0])); + + bp = (unsigned char*) tif->tif_rawcp; + cc = tif->tif_rawcc; + /* get each byte string */ + for (shft = 2*8; (shft -= 8) >= 0; ) { + for (i = 0; i < npixels && cc > 0; ) + if (*bp >= 128) { /* run */ + rc = *bp++ + (2-128); + b = (int16)(*bp++ << shft); + cc -= 2; + while (rc-- && i < npixels) + tp[i++] |= b; + } else { /* non-run */ + rc = *bp++; /* nul is noop */ + while (--cc && rc-- && i < npixels) + tp[i++] |= (int16)*bp++ << shft; + } + if (i != npixels) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LogL16Decode: Not enough data at row %d (short %d pixels)", + tif->tif_row, npixels - i); + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + return (0); + } + } + (*sp->tfunc)(sp, op, npixels); + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + return (1); +} + +/* + * Decode a string of 24-bit pixels. + */ +static int +LogLuvDecode24(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) +{ + LogLuvState* sp = DecoderState(tif); + int cc, i, npixels; + unsigned char* bp; + uint32* tp; + + assert(s == 0); + assert(sp != NULL); + + npixels = occ / sp->pixel_size; + + if (sp->user_datafmt == SGILOGDATAFMT_RAW) + tp = (uint32 *)op; + else { + assert(sp->tbuflen >= npixels); + tp = (uint32 *) sp->tbuf; + } + /* copy to array of uint32 */ + bp = (unsigned char*) tif->tif_rawcp; + cc = tif->tif_rawcc; + for (i = 0; i < npixels && cc > 0; i++) { + tp[i] = bp[0] << 16 | bp[1] << 8 | bp[2]; + bp += 3; + cc -= 3; + } + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + if (i != npixels) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LogLuvDecode24: Not enough data at row %d (short %d pixels)", + tif->tif_row, npixels - i); + return (0); + } + (*sp->tfunc)(sp, op, npixels); + return (1); +} + +/* + * Decode a string of 32-bit pixels. + */ +static int +LogLuvDecode32(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) +{ + LogLuvState* sp; + int shft, i, npixels; + unsigned char* bp; + uint32* tp; + uint32 b; + int cc, rc; + + assert(s == 0); + sp = DecoderState(tif); + assert(sp != NULL); + + npixels = occ / sp->pixel_size; + + if (sp->user_datafmt == SGILOGDATAFMT_RAW) + tp = (uint32*) op; + else { + assert(sp->tbuflen >= npixels); + tp = (uint32*) sp->tbuf; + } + _TIFFmemset((tdata_t) tp, 0, npixels*sizeof (tp[0])); + + bp = (unsigned char*) tif->tif_rawcp; + cc = tif->tif_rawcc; + /* get each byte string */ + for (shft = 4*8; (shft -= 8) >= 0; ) { + for (i = 0; i < npixels && cc > 0; ) + if (*bp >= 128) { /* run */ + rc = *bp++ + (2-128); + b = (uint32)*bp++ << shft; + cc -= 2; + while (rc-- && i < npixels) + tp[i++] |= b; + } else { /* non-run */ + rc = *bp++; /* nul is noop */ + while (--cc && rc-- && i < npixels) + tp[i++] |= (uint32)*bp++ << shft; + } + if (i != npixels) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LogLuvDecode32: Not enough data at row %d (short %d pixels)", + tif->tif_row, npixels - i); + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + return (0); + } + } + (*sp->tfunc)(sp, op, npixels); + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + return (1); +} + +/* + * Decode a strip of pixels. We break it into rows to + * maintain synchrony with the encode algorithm, which + * is row by row. + */ +static int +LogLuvDecodeStrip(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + tsize_t rowlen = TIFFScanlineSize(tif); + + assert(cc%rowlen == 0); + while (cc && (*tif->tif_decoderow)(tif, bp, rowlen, s)) + bp += rowlen, cc -= rowlen; + return (cc == 0); +} + +/* + * Decode a tile of pixels. We break it into rows to + * maintain synchrony with the encode algorithm, which + * is row by row. + */ +static int +LogLuvDecodeTile(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + tsize_t rowlen = TIFFTileRowSize(tif); + + assert(cc%rowlen == 0); + while (cc && (*tif->tif_decoderow)(tif, bp, rowlen, s)) + bp += rowlen, cc -= rowlen; + return (cc == 0); +} + +/* + * Encode a row of 16-bit pixels. + */ +static int +LogL16Encode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + LogLuvState* sp = EncoderState(tif); + int shft, i, j, npixels; + tidata_t op; + int16* tp; + int16 b; + int occ, rc=0, mask, beg; + + assert(s == 0); + assert(sp != NULL); + npixels = cc / sp->pixel_size; + + if (sp->user_datafmt == SGILOGDATAFMT_16BIT) + tp = (int16*) bp; + else { + tp = (int16*) sp->tbuf; + assert(sp->tbuflen >= npixels); + (*sp->tfunc)(sp, bp, npixels); + } + /* compress each byte string */ + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + for (shft = 2*8; (shft -= 8) >= 0; ) + for (i = 0; i < npixels; i += rc) { + if (occ < 4) { + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + } + mask = 0xff << shft; /* find next run */ + for (beg = i; beg < npixels; beg += rc) { + b = (int16) (tp[beg] & mask); + rc = 1; + while (rc < 127+2 && beg+rc < npixels && + (tp[beg+rc] & mask) == b) + rc++; + if (rc >= MINRUN) + break; /* long enough */ + } + if (beg-i > 1 && beg-i < MINRUN) { + b = (int16) (tp[i] & mask);/*check short run */ + j = i+1; + while ((tp[j++] & mask) == b) + if (j == beg) { + *op++ = (tidataval_t)(128-2+j-i); + *op++ = (tidataval_t) (b >> shft); + occ -= 2; + i = beg; + break; + } + } + while (i < beg) { /* write out non-run */ + if ((j = beg-i) > 127) j = 127; + if (occ < j+3) { + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + } + *op++ = (tidataval_t) j; occ--; + while (j--) { + *op++ = (tidataval_t) (tp[i++] >> shft & 0xff); + occ--; + } + } + if (rc >= MINRUN) { /* write out run */ + *op++ = (tidataval_t) (128-2+rc); + *op++ = (tidataval_t) (tp[beg] >> shft & 0xff); + occ -= 2; + } else + rc = 0; + } + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + + return (1); +} + +/* + * Encode a row of 24-bit pixels. + */ +static int +LogLuvEncode24(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + LogLuvState* sp = EncoderState(tif); + int i, npixels, occ; + tidata_t op; + uint32* tp; + + assert(s == 0); + assert(sp != NULL); + npixels = cc / sp->pixel_size; + + if (sp->user_datafmt == SGILOGDATAFMT_RAW) + tp = (uint32*) bp; + else { + tp = (uint32*) sp->tbuf; + assert(sp->tbuflen >= npixels); + (*sp->tfunc)(sp, bp, npixels); + } + /* write out encoded pixels */ + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + for (i = npixels; i--; ) { + if (occ < 3) { + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + } + *op++ = (tidataval_t)(*tp >> 16); + *op++ = (tidataval_t)(*tp >> 8 & 0xff); + *op++ = (tidataval_t)(*tp++ & 0xff); + occ -= 3; + } + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + + return (1); +} + +/* + * Encode a row of 32-bit pixels. + */ +static int +LogLuvEncode32(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + LogLuvState* sp = EncoderState(tif); + int shft, i, j, npixels; + tidata_t op; + uint32* tp; + uint32 b; + int occ, rc=0, mask, beg; + + assert(s == 0); + assert(sp != NULL); + + npixels = cc / sp->pixel_size; + + if (sp->user_datafmt == SGILOGDATAFMT_RAW) + tp = (uint32*) bp; + else { + tp = (uint32*) sp->tbuf; + assert(sp->tbuflen >= npixels); + (*sp->tfunc)(sp, bp, npixels); + } + /* compress each byte string */ + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + for (shft = 4*8; (shft -= 8) >= 0; ) + for (i = 0; i < npixels; i += rc) { + if (occ < 4) { + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + } + mask = 0xff << shft; /* find next run */ + for (beg = i; beg < npixels; beg += rc) { + b = tp[beg] & mask; + rc = 1; + while (rc < 127+2 && beg+rc < npixels && + (tp[beg+rc] & mask) == b) + rc++; + if (rc >= MINRUN) + break; /* long enough */ + } + if (beg-i > 1 && beg-i < MINRUN) { + b = tp[i] & mask; /* check short run */ + j = i+1; + while ((tp[j++] & mask) == b) + if (j == beg) { + *op++ = (tidataval_t)(128-2+j-i); + *op++ = (tidataval_t)(b >> shft); + occ -= 2; + i = beg; + break; + } + } + while (i < beg) { /* write out non-run */ + if ((j = beg-i) > 127) j = 127; + if (occ < j+3) { + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + occ = tif->tif_rawdatasize - tif->tif_rawcc; + } + *op++ = (tidataval_t) j; occ--; + while (j--) { + *op++ = (tidataval_t)(tp[i++] >> shft & 0xff); + occ--; + } + } + if (rc >= MINRUN) { /* write out run */ + *op++ = (tidataval_t) (128-2+rc); + *op++ = (tidataval_t)(tp[beg] >> shft & 0xff); + occ -= 2; + } else + rc = 0; + } + tif->tif_rawcp = op; + tif->tif_rawcc = tif->tif_rawdatasize - occ; + + return (1); +} + +/* + * Encode a strip of pixels. We break it into rows to + * avoid encoding runs across row boundaries. + */ +static int +LogLuvEncodeStrip(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + tsize_t rowlen = TIFFScanlineSize(tif); + + assert(cc%rowlen == 0); + while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 1) + bp += rowlen, cc -= rowlen; + return (cc == 0); +} + +/* + * Encode a tile of pixels. We break it into rows to + * avoid encoding runs across row boundaries. + */ +static int +LogLuvEncodeTile(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + tsize_t rowlen = TIFFTileRowSize(tif); + + assert(cc%rowlen == 0); + while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 1) + bp += rowlen, cc -= rowlen; + return (cc == 0); +} + +/* + * Encode/Decode functions for converting to and from user formats. + */ + +#include "uvcode.h" + +#ifndef UVSCALE +#define U_NEU 0.210526316 +#define V_NEU 0.473684211 +#define UVSCALE 410. +#endif + +#ifndef M_LN2 +#define M_LN2 0.69314718055994530942 +#endif +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif +#define log2(x) ((1./M_LN2)*log(x)) +#define exp2(x) exp(M_LN2*(x)) + +#define itrunc(x,m) ((m)==SGILOGENCODE_NODITHER ? \ + (int)(x) : \ + (int)((x) + rand()*(1./RAND_MAX) - .5)) + +#if !LOGLUV_PUBLIC +static +#endif +double +LogL16toY(int p16) /* compute luminance from 16-bit LogL */ +{ + int Le = p16 & 0x7fff; + double Y; + + if (!Le) + return (0.); + Y = exp(M_LN2/256.*(Le+.5) - M_LN2*64.); + return (!(p16 & 0x8000) ? Y : -Y); +} + +#if !LOGLUV_PUBLIC +static +#endif +int +LogL16fromY(double Y, int em) /* get 16-bit LogL from Y */ +{ + if (Y >= 1.8371976e19) + return (0x7fff); + if (Y <= -1.8371976e19) + return (0xffff); + if (Y > 5.4136769e-20) + return itrunc(256.*(log2(Y) + 64.), em); + if (Y < -5.4136769e-20) + return (~0x7fff | itrunc(256.*(log2(-Y) + 64.), em)); + return (0); +} + +static void +L16toY(LogLuvState* sp, tidata_t op, int n) +{ + int16* l16 = (int16*) sp->tbuf; + float* yp = (float*) op; + + while (n-- > 0) + *yp++ = (float)LogL16toY(*l16++); +} + +static void +L16toGry(LogLuvState* sp, tidata_t op, int n) +{ + int16* l16 = (int16*) sp->tbuf; + uint8* gp = (uint8*) op; + + while (n-- > 0) { + double Y = LogL16toY(*l16++); + *gp++ = (uint8) ((Y <= 0.) ? 0 : (Y >= 1.) ? 255 : (int)(256.*sqrt(Y))); + } +} + +static void +L16fromY(LogLuvState* sp, tidata_t op, int n) +{ + int16* l16 = (int16*) sp->tbuf; + float* yp = (float*) op; + + while (n-- > 0) + *l16++ = (int16) (LogL16fromY(*yp++, sp->encode_meth)); +} + +#if !LOGLUV_PUBLIC +static +#endif +void +XYZtoRGB24(float xyz[3], uint8 rgb[3]) +{ + double r, g, b; + /* assume CCIR-709 primaries */ + r = 2.690*xyz[0] + -1.276*xyz[1] + -0.414*xyz[2]; + g = -1.022*xyz[0] + 1.978*xyz[1] + 0.044*xyz[2]; + b = 0.061*xyz[0] + -0.224*xyz[1] + 1.163*xyz[2]; + /* assume 2.0 gamma for speed */ + /* could use integer sqrt approx., but this is probably faster */ + rgb[0] = (uint8)((r<=0.) ? 0 : (r >= 1.) ? 255 : (int)(256.*sqrt(r))); + rgb[1] = (uint8)((g<=0.) ? 0 : (g >= 1.) ? 255 : (int)(256.*sqrt(g))); + rgb[2] = (uint8)((b<=0.) ? 0 : (b >= 1.) ? 255 : (int)(256.*sqrt(b))); +} + +#if !LOGLUV_PUBLIC +static +#endif +double +LogL10toY(int p10) /* compute luminance from 10-bit LogL */ +{ + if (p10 == 0) + return (0.); + return (exp(M_LN2/64.*(p10+.5) - M_LN2*12.)); +} + +#if !LOGLUV_PUBLIC +static +#endif +int +LogL10fromY(double Y, int em) /* get 10-bit LogL from Y */ +{ + if (Y >= 15.742) + return (0x3ff); + else if (Y <= .00024283) + return (0); + else + return itrunc(64.*(log2(Y) + 12.), em); +} + +#define NANGLES 100 +#define uv2ang(u, v) ( (NANGLES*.499999999/M_PI) \ + * atan2((v)-V_NEU,(u)-U_NEU) + .5*NANGLES ) + +static int +oog_encode(double u, double v) /* encode out-of-gamut chroma */ +{ + static int oog_table[NANGLES]; + static int initialized = 0; + register int i; + + if (!initialized) { /* set up perimeter table */ + double eps[NANGLES], ua, va, ang, epsa; + int ui, vi, ustep; + for (i = NANGLES; i--; ) + eps[i] = 2.; + for (vi = UV_NVS; vi--; ) { + va = UV_VSTART + (vi+.5)*UV_SQSIZ; + ustep = uv_row[vi].nus-1; + if (vi == UV_NVS-1 || vi == 0 || ustep <= 0) + ustep = 1; + for (ui = uv_row[vi].nus-1; ui >= 0; ui -= ustep) { + ua = uv_row[vi].ustart + (ui+.5)*UV_SQSIZ; + ang = uv2ang(ua, va); + i = (int) ang; + epsa = fabs(ang - (i+.5)); + if (epsa < eps[i]) { + oog_table[i] = uv_row[vi].ncum + ui; + eps[i] = epsa; + } + } + } + for (i = NANGLES; i--; ) /* fill any holes */ + if (eps[i] > 1.5) { + int i1, i2; + for (i1 = 1; i1 < NANGLES/2; i1++) + if (eps[(i+i1)%NANGLES] < 1.5) + break; + for (i2 = 1; i2 < NANGLES/2; i2++) + if (eps[(i+NANGLES-i2)%NANGLES] < 1.5) + break; + if (i1 < i2) + oog_table[i] = + oog_table[(i+i1)%NANGLES]; + else + oog_table[i] = + oog_table[(i+NANGLES-i2)%NANGLES]; + } + initialized = 1; + } + i = (int) uv2ang(u, v); /* look up hue angle */ + return (oog_table[i]); +} + +#undef uv2ang +#undef NANGLES + +#if !LOGLUV_PUBLIC +static +#endif +int +uv_encode(double u, double v, int em) /* encode (u',v') coordinates */ +{ + register int vi, ui; + + if (v < UV_VSTART) + return oog_encode(u, v); + vi = itrunc((v - UV_VSTART)*(1./UV_SQSIZ), em); + if (vi >= UV_NVS) + return oog_encode(u, v); + if (u < uv_row[vi].ustart) + return oog_encode(u, v); + ui = itrunc((u - uv_row[vi].ustart)*(1./UV_SQSIZ), em); + if (ui >= uv_row[vi].nus) + return oog_encode(u, v); + + return (uv_row[vi].ncum + ui); +} + +#if !LOGLUV_PUBLIC +static +#endif +int +uv_decode(double *up, double *vp, int c) /* decode (u',v') index */ +{ + int upper, lower; + register int ui, vi; + + if (c < 0 || c >= UV_NDIVS) + return (-1); + lower = 0; /* binary search */ + upper = UV_NVS; + while (upper - lower > 1) { + vi = (lower + upper) >> 1; + ui = c - uv_row[vi].ncum; + if (ui > 0) + lower = vi; + else if (ui < 0) + upper = vi; + else { + lower = vi; + break; + } + } + vi = lower; + ui = c - uv_row[vi].ncum; + *up = uv_row[vi].ustart + (ui+.5)*UV_SQSIZ; + *vp = UV_VSTART + (vi+.5)*UV_SQSIZ; + return (0); +} + +#if !LOGLUV_PUBLIC +static +#endif +void +LogLuv24toXYZ(uint32 p, float XYZ[3]) +{ + int Ce; + double L, u, v, s, x, y; + /* decode luminance */ + L = LogL10toY(p>>14 & 0x3ff); + if (L <= 0.) { + XYZ[0] = XYZ[1] = XYZ[2] = 0.; + return; + } + /* decode color */ + Ce = p & 0x3fff; + if (uv_decode(&u, &v, Ce) < 0) { + u = U_NEU; v = V_NEU; + } + s = 1./(6.*u - 16.*v + 12.); + x = 9.*u * s; + y = 4.*v * s; + /* convert to XYZ */ + XYZ[0] = (float)(x/y * L); + XYZ[1] = (float)L; + XYZ[2] = (float)((1.-x-y)/y * L); +} + +#if !LOGLUV_PUBLIC +static +#endif +uint32 +LogLuv24fromXYZ(float XYZ[3], int em) +{ + int Le, Ce; + double u, v, s; + /* encode luminance */ + Le = LogL10fromY(XYZ[1], em); + /* encode color */ + s = XYZ[0] + 15.*XYZ[1] + 3.*XYZ[2]; + if (!Le || s <= 0.) { + u = U_NEU; + v = V_NEU; + } else { + u = 4.*XYZ[0] / s; + v = 9.*XYZ[1] / s; + } + Ce = uv_encode(u, v, em); + if (Ce < 0) /* never happens */ + Ce = uv_encode(U_NEU, V_NEU, SGILOGENCODE_NODITHER); + /* combine encodings */ + return (Le << 14 | Ce); +} + +static void +Luv24toXYZ(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + float* xyz = (float*) op; + + while (n-- > 0) { + LogLuv24toXYZ(*luv, xyz); + xyz += 3; + luv++; + } +} + +static void +Luv24toLuv48(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + int16* luv3 = (int16*) op; + + while (n-- > 0) { + double u, v; + + *luv3++ = (int16)((*luv >> 12 & 0xffd) + 13314); + if (uv_decode(&u, &v, *luv&0x3fff) < 0) { + u = U_NEU; + v = V_NEU; + } + *luv3++ = (int16)(u * (1L<<15)); + *luv3++ = (int16)(v * (1L<<15)); + luv++; + } +} + +static void +Luv24toRGB(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + uint8* rgb = (uint8*) op; + + while (n-- > 0) { + float xyz[3]; + + LogLuv24toXYZ(*luv++, xyz); + XYZtoRGB24(xyz, rgb); + rgb += 3; + } +} + +static void +Luv24fromXYZ(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + float* xyz = (float*) op; + + while (n-- > 0) { + *luv++ = LogLuv24fromXYZ(xyz, sp->encode_meth); + xyz += 3; + } +} + +static void +Luv24fromLuv48(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + int16* luv3 = (int16*) op; + + while (n-- > 0) { + int Le, Ce; + + if (luv3[0] <= 0) + Le = 0; + else if (luv3[0] >= (1<<12)+3314) + Le = (1<<10) - 1; + else if (sp->encode_meth == SGILOGENCODE_NODITHER) + Le = (luv3[0]-3314) >> 2; + else + Le = itrunc(.25*(luv3[0]-3314.), sp->encode_meth); + + Ce = uv_encode((luv3[1]+.5)/(1<<15), (luv3[2]+.5)/(1<<15), + sp->encode_meth); + if (Ce < 0) /* never happens */ + Ce = uv_encode(U_NEU, V_NEU, SGILOGENCODE_NODITHER); + *luv++ = (uint32)Le << 14 | Ce; + luv3 += 3; + } +} + +#if !LOGLUV_PUBLIC +static +#endif +void +LogLuv32toXYZ(uint32 p, float XYZ[3]) +{ + double L, u, v, s, x, y; + /* decode luminance */ + L = LogL16toY((int)p >> 16); + if (L <= 0.) { + XYZ[0] = XYZ[1] = XYZ[2] = 0.; + return; + } + /* decode color */ + u = 1./UVSCALE * ((p>>8 & 0xff) + .5); + v = 1./UVSCALE * ((p & 0xff) + .5); + s = 1./(6.*u - 16.*v + 12.); + x = 9.*u * s; + y = 4.*v * s; + /* convert to XYZ */ + XYZ[0] = (float)(x/y * L); + XYZ[1] = (float)L; + XYZ[2] = (float)((1.-x-y)/y * L); +} + +#if !LOGLUV_PUBLIC +static +#endif +uint32 +LogLuv32fromXYZ(float XYZ[3], int em) +{ + unsigned int Le, ue, ve; + double u, v, s; + /* encode luminance */ + Le = (unsigned int)LogL16fromY(XYZ[1], em); + /* encode color */ + s = XYZ[0] + 15.*XYZ[1] + 3.*XYZ[2]; + if (!Le || s <= 0.) { + u = U_NEU; + v = V_NEU; + } else { + u = 4.*XYZ[0] / s; + v = 9.*XYZ[1] / s; + } + if (u <= 0.) ue = 0; + else ue = itrunc(UVSCALE*u, em); + if (ue > 255) ue = 255; + if (v <= 0.) ve = 0; + else ve = itrunc(UVSCALE*v, em); + if (ve > 255) ve = 255; + /* combine encodings */ + return (Le << 16 | ue << 8 | ve); +} + +static void +Luv32toXYZ(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + float* xyz = (float*) op; + + while (n-- > 0) { + LogLuv32toXYZ(*luv++, xyz); + xyz += 3; + } +} + +static void +Luv32toLuv48(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + int16* luv3 = (int16*) op; + + while (n-- > 0) { + double u, v; + + *luv3++ = (int16)(*luv >> 16); + u = 1./UVSCALE * ((*luv>>8 & 0xff) + .5); + v = 1./UVSCALE * ((*luv & 0xff) + .5); + *luv3++ = (int16)(u * (1L<<15)); + *luv3++ = (int16)(v * (1L<<15)); + luv++; + } +} + +static void +Luv32toRGB(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + uint8* rgb = (uint8*) op; + + while (n-- > 0) { + float xyz[3]; + + LogLuv32toXYZ(*luv++, xyz); + XYZtoRGB24(xyz, rgb); + rgb += 3; + } +} + +static void +Luv32fromXYZ(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + float* xyz = (float*) op; + + while (n-- > 0) { + *luv++ = LogLuv32fromXYZ(xyz, sp->encode_meth); + xyz += 3; + } +} + +static void +Luv32fromLuv48(LogLuvState* sp, tidata_t op, int n) +{ + uint32* luv = (uint32*) sp->tbuf; + int16* luv3 = (int16*) op; + + if (sp->encode_meth == SGILOGENCODE_NODITHER) { + while (n-- > 0) { + *luv++ = (uint32)luv3[0] << 16 | + (luv3[1]*(uint32)(UVSCALE+.5) >> 7 & 0xff00) | + (luv3[2]*(uint32)(UVSCALE+.5) >> 15 & 0xff); + luv3 += 3; + } + return; + } + while (n-- > 0) { + *luv++ = (uint32)luv3[0] << 16 | + (itrunc(luv3[1]*(UVSCALE/(1<<15)), sp->encode_meth) << 8 & 0xff00) | + (itrunc(luv3[2]*(UVSCALE/(1<<15)), sp->encode_meth) & 0xff); + luv3 += 3; + } +} + +static void +_logLuvNop(LogLuvState* sp, tidata_t op, int n) +{ + (void) sp; (void) op; (void) n; +} + +static int +LogL16GuessDataFmt(TIFFDirectory *td) +{ +#define PACK(s,b,f) (((b)<<6)|((s)<<3)|(f)) + switch (PACK(td->td_samplesperpixel, td->td_bitspersample, td->td_sampleformat)) { + case PACK(1, 32, SAMPLEFORMAT_IEEEFP): + return (SGILOGDATAFMT_FLOAT); + case PACK(1, 16, SAMPLEFORMAT_VOID): + case PACK(1, 16, SAMPLEFORMAT_INT): + case PACK(1, 16, SAMPLEFORMAT_UINT): + return (SGILOGDATAFMT_16BIT); + case PACK(1, 8, SAMPLEFORMAT_VOID): + case PACK(1, 8, SAMPLEFORMAT_UINT): + return (SGILOGDATAFMT_8BIT); + } +#undef PACK + return (SGILOGDATAFMT_UNKNOWN); +} + +static uint32 +multiply(size_t m1, size_t m2) +{ + uint32 bytes = m1 * m2; + + if (m1 && bytes / m1 != m2) + bytes = 0; + + return bytes; +} + +static int +LogL16InitState(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + LogLuvState* sp = DecoderState(tif); + static const char module[] = "LogL16InitState"; + + assert(sp != NULL); + assert(td->td_photometric == PHOTOMETRIC_LOGL); + + /* for some reason, we can't do this in TIFFInitLogL16 */ + if (sp->user_datafmt == SGILOGDATAFMT_UNKNOWN) + sp->user_datafmt = LogL16GuessDataFmt(td); + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->pixel_size = sizeof (float); + break; + case SGILOGDATAFMT_16BIT: + sp->pixel_size = sizeof (int16); + break; + case SGILOGDATAFMT_8BIT: + sp->pixel_size = sizeof (uint8); + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No support for converting user data format to LogL"); + return (0); + } + if( isTiled(tif) ) + sp->tbuflen = multiply(td->td_tilewidth, td->td_tilelength); + else + sp->tbuflen = multiply(td->td_imagewidth, td->td_rowsperstrip); + if (multiply(sp->tbuflen, sizeof (int16)) == 0 || + (sp->tbuf = (tidata_t*) _TIFFmalloc(sp->tbuflen * sizeof (int16))) == NULL) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for SGILog translation buffer", + tif->tif_name); + return (0); + } + return (1); +} + +static int +LogLuvGuessDataFmt(TIFFDirectory *td) +{ + int guess; + + /* + * If the user didn't tell us their datafmt, + * take our best guess from the bitspersample. + */ +#define PACK(a,b) (((a)<<3)|(b)) + switch (PACK(td->td_bitspersample, td->td_sampleformat)) { + case PACK(32, SAMPLEFORMAT_IEEEFP): + guess = SGILOGDATAFMT_FLOAT; + break; + case PACK(32, SAMPLEFORMAT_VOID): + case PACK(32, SAMPLEFORMAT_UINT): + case PACK(32, SAMPLEFORMAT_INT): + guess = SGILOGDATAFMT_RAW; + break; + case PACK(16, SAMPLEFORMAT_VOID): + case PACK(16, SAMPLEFORMAT_INT): + case PACK(16, SAMPLEFORMAT_UINT): + guess = SGILOGDATAFMT_16BIT; + break; + case PACK( 8, SAMPLEFORMAT_VOID): + case PACK( 8, SAMPLEFORMAT_UINT): + guess = SGILOGDATAFMT_8BIT; + break; + default: + guess = SGILOGDATAFMT_UNKNOWN; + break; +#undef PACK + } + /* + * Double-check samples per pixel. + */ + switch (td->td_samplesperpixel) { + case 1: + if (guess != SGILOGDATAFMT_RAW) + guess = SGILOGDATAFMT_UNKNOWN; + break; + case 3: + if (guess == SGILOGDATAFMT_RAW) + guess = SGILOGDATAFMT_UNKNOWN; + break; + default: + guess = SGILOGDATAFMT_UNKNOWN; + break; + } + return (guess); +} + +static int +LogLuvInitState(TIFF* tif) +{ + TIFFDirectory* td = &tif->tif_dir; + LogLuvState* sp = DecoderState(tif); + static const char module[] = "LogLuvInitState"; + + assert(sp != NULL); + assert(td->td_photometric == PHOTOMETRIC_LOGLUV); + + /* for some reason, we can't do this in TIFFInitLogLuv */ + if (td->td_planarconfig != PLANARCONFIG_CONTIG) { + TIFFErrorExt(tif->tif_clientdata, module, + "SGILog compression cannot handle non-contiguous data"); + return (0); + } + if (sp->user_datafmt == SGILOGDATAFMT_UNKNOWN) + sp->user_datafmt = LogLuvGuessDataFmt(td); + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->pixel_size = 3*sizeof (float); + break; + case SGILOGDATAFMT_16BIT: + sp->pixel_size = 3*sizeof (int16); + break; + case SGILOGDATAFMT_RAW: + sp->pixel_size = sizeof (uint32); + break; + case SGILOGDATAFMT_8BIT: + sp->pixel_size = 3*sizeof (uint8); + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "No support for converting user data format to LogLuv"); + return (0); + } + if( isTiled(tif) ) + sp->tbuflen = multiply(td->td_tilewidth, td->td_tilelength); + else + sp->tbuflen = multiply(td->td_imagewidth, td->td_rowsperstrip); + if (multiply(sp->tbuflen, sizeof (uint32)) == 0 || + (sp->tbuf = (tidata_t*) _TIFFmalloc(sp->tbuflen * sizeof (uint32))) == NULL) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for SGILog translation buffer", + tif->tif_name); + return (0); + } + return (1); +} + +static int +LogLuvSetupDecode(TIFF* tif) +{ + LogLuvState* sp = DecoderState(tif); + TIFFDirectory* td = &tif->tif_dir; + + tif->tif_postdecode = _TIFFNoPostDecode; + switch (td->td_photometric) { + case PHOTOMETRIC_LOGLUV: + if (!LogLuvInitState(tif)) + break; + if (td->td_compression == COMPRESSION_SGILOG24) { + tif->tif_decoderow = LogLuvDecode24; + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->tfunc = Luv24toXYZ; + break; + case SGILOGDATAFMT_16BIT: + sp->tfunc = Luv24toLuv48; + break; + case SGILOGDATAFMT_8BIT: + sp->tfunc = Luv24toRGB; + break; + } + } else { + tif->tif_decoderow = LogLuvDecode32; + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->tfunc = Luv32toXYZ; + break; + case SGILOGDATAFMT_16BIT: + sp->tfunc = Luv32toLuv48; + break; + case SGILOGDATAFMT_8BIT: + sp->tfunc = Luv32toRGB; + break; + } + } + return (1); + case PHOTOMETRIC_LOGL: + if (!LogL16InitState(tif)) + break; + tif->tif_decoderow = LogL16Decode; + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->tfunc = L16toY; + break; + case SGILOGDATAFMT_8BIT: + sp->tfunc = L16toGry; + break; + } + return (1); + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Inappropriate photometric interpretation %d for SGILog compression; %s", + td->td_photometric, "must be either LogLUV or LogL"); + break; + } + return (0); +} + +static int +LogLuvSetupEncode(TIFF* tif) +{ + LogLuvState* sp = EncoderState(tif); + TIFFDirectory* td = &tif->tif_dir; + + switch (td->td_photometric) { + case PHOTOMETRIC_LOGLUV: + if (!LogLuvInitState(tif)) + break; + if (td->td_compression == COMPRESSION_SGILOG24) { + tif->tif_encoderow = LogLuvEncode24; + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->tfunc = Luv24fromXYZ; + break; + case SGILOGDATAFMT_16BIT: + sp->tfunc = Luv24fromLuv48; + break; + case SGILOGDATAFMT_RAW: + break; + default: + goto notsupported; + } + } else { + tif->tif_encoderow = LogLuvEncode32; + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->tfunc = Luv32fromXYZ; + break; + case SGILOGDATAFMT_16BIT: + sp->tfunc = Luv32fromLuv48; + break; + case SGILOGDATAFMT_RAW: + break; + default: + goto notsupported; + } + } + break; + case PHOTOMETRIC_LOGL: + if (!LogL16InitState(tif)) + break; + tif->tif_encoderow = LogL16Encode; + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + sp->tfunc = L16fromY; + break; + case SGILOGDATAFMT_16BIT: + break; + default: + goto notsupported; + } + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Inappropriate photometric interpretation %d for SGILog compression; %s", + td->td_photometric, "must be either LogLUV or LogL"); + break; + } + return (1); +notsupported: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "SGILog compression supported only for %s, or raw data", + td->td_photometric == PHOTOMETRIC_LOGL ? "Y, L" : "XYZ, Luv"); + return (0); +} + +static void +LogLuvClose(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + + /* + * For consistency, we always want to write out the same + * bitspersample and sampleformat for our TIFF file, + * regardless of the data format being used by the application. + * Since this routine is called after tags have been set but + * before they have been recorded in the file, we reset them here. + */ + td->td_samplesperpixel = + (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3; + td->td_bitspersample = 16; + td->td_sampleformat = SAMPLEFORMAT_INT; +} + +static void +LogLuvCleanup(TIFF* tif) +{ + LogLuvState* sp = (LogLuvState *)tif->tif_data; + + assert(sp != 0); + + tif->tif_tagmethods.vgetfield = sp->vgetparent; + tif->tif_tagmethods.vsetfield = sp->vsetparent; + + if (sp->tbuf) + _TIFFfree(sp->tbuf); + _TIFFfree(sp); + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +static int +LogLuvVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + LogLuvState* sp = DecoderState(tif); + int bps, fmt; + + switch (tag) { + case TIFFTAG_SGILOGDATAFMT: + sp->user_datafmt = va_arg(ap, int); + /* + * Tweak the TIFF header so that the rest of libtiff knows what + * size of data will be passed between app and library, and + * assume that the app knows what it is doing and is not + * confused by these header manipulations... + */ + switch (sp->user_datafmt) { + case SGILOGDATAFMT_FLOAT: + bps = 32, fmt = SAMPLEFORMAT_IEEEFP; + break; + case SGILOGDATAFMT_16BIT: + bps = 16, fmt = SAMPLEFORMAT_INT; + break; + case SGILOGDATAFMT_RAW: + bps = 32, fmt = SAMPLEFORMAT_UINT; + TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1); + break; + case SGILOGDATAFMT_8BIT: + bps = 8, fmt = SAMPLEFORMAT_UINT; + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Unknown data format %d for LogLuv compression", + sp->user_datafmt); + return (0); + } + TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps); + TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, fmt); + /* + * Must recalculate sizes should bits/sample change. + */ + tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; + tif->tif_scanlinesize = TIFFScanlineSize(tif); + return (1); + case TIFFTAG_SGILOGENCODE: + sp->encode_meth = va_arg(ap, int); + if (sp->encode_meth != SGILOGENCODE_NODITHER && + sp->encode_meth != SGILOGENCODE_RANDITHER) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Unknown encoding %d for LogLuv compression", + sp->encode_meth); + return (0); + } + return (1); + default: + return (*sp->vsetparent)(tif, tag, ap); + } +} + +static int +LogLuvVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + LogLuvState *sp = (LogLuvState *)tif->tif_data; + + switch (tag) { + case TIFFTAG_SGILOGDATAFMT: + *va_arg(ap, int*) = sp->user_datafmt; + return (1); + default: + return (*sp->vgetparent)(tif, tag, ap); + } +} + +static const TIFFFieldInfo LogLuvFieldInfo[] = { + { TIFFTAG_SGILOGDATAFMT, 0, 0, TIFF_SHORT, FIELD_PSEUDO, + TRUE, FALSE, "SGILogDataFmt"}, + { TIFFTAG_SGILOGENCODE, 0, 0, TIFF_SHORT, FIELD_PSEUDO, + TRUE, FALSE, "SGILogEncode"} +}; + +int +TIFFInitSGILog(TIFF* tif, int scheme) +{ + static const char module[] = "TIFFInitSGILog"; + LogLuvState* sp; + + assert(scheme == COMPRESSION_SGILOG24 || scheme == COMPRESSION_SGILOG); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, LogLuvFieldInfo, + TIFFArrayCount(LogLuvFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging SGILog codec-specific tags failed"); + return 0; + } + + /* + * Allocate state block so tag methods have storage to record values. + */ + tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (LogLuvState)); + if (tif->tif_data == NULL) + goto bad; + sp = (LogLuvState*) tif->tif_data; + _TIFFmemset((tdata_t)sp, 0, sizeof (*sp)); + sp->user_datafmt = SGILOGDATAFMT_UNKNOWN; + sp->encode_meth = (scheme == COMPRESSION_SGILOG24) ? + SGILOGENCODE_RANDITHER : SGILOGENCODE_NODITHER; + sp->tfunc = _logLuvNop; + + /* + * Install codec methods. + * NB: tif_decoderow & tif_encoderow are filled + * in at setup time. + */ + tif->tif_setupdecode = LogLuvSetupDecode; + tif->tif_decodestrip = LogLuvDecodeStrip; + tif->tif_decodetile = LogLuvDecodeTile; + tif->tif_setupencode = LogLuvSetupEncode; + tif->tif_encodestrip = LogLuvEncodeStrip; + tif->tif_encodetile = LogLuvEncodeTile; + tif->tif_close = LogLuvClose; + tif->tif_cleanup = LogLuvCleanup; + + /* + * Override parent get/set field methods. + */ + sp->vgetparent = tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield = LogLuvVGetField; /* hook for codec tags */ + sp->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield = LogLuvVSetField; /* hook for codec tags */ + + return (1); +bad: + TIFFErrorExt(tif->tif_clientdata, module, + "%s: No space for LogLuv state block", tif->tif_name); + return (0); +} +#endif /* LOGLUV_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_lzw.c b/tiff/libtiff/tif_lzw.c new file mode 100644 index 0000000..d423866 --- /dev/null +++ b/tiff/libtiff/tif_lzw.c @@ -0,0 +1,1129 @@ +/* $Id: tif_lzw.c,v 1.29.2.6 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef LZW_SUPPORT +/* + * TIFF Library. + * Rev 5.0 Lempel-Ziv & Welch Compression Support + * + * This code is derived from the compress program whose code is + * derived from software contributed to Berkeley by James A. Woods, + * derived from original work by Spencer Thomas and Joseph Orost. + * + * The original Berkeley copyright notice appears below in its entirety. + */ +#include "tif_predict.h" + +#include <stdio.h> + +/* + * NB: The 5.0 spec describes a different algorithm than Aldus + * implements. Specifically, Aldus does code length transitions + * one code earlier than should be done (for real LZW). + * Earlier versions of this library implemented the correct + * LZW algorithm, but emitted codes in a bit order opposite + * to the TIFF spec. Thus, to maintain compatibility w/ Aldus + * we interpret MSB-LSB ordered codes to be images written w/ + * old versions of this library, but otherwise adhere to the + * Aldus "off by one" algorithm. + * + * Future revisions to the TIFF spec are expected to "clarify this issue". + */ +#define LZW_COMPAT /* include backwards compatibility code */ +/* + * Each strip of data is supposed to be terminated by a CODE_EOI. + * If the following #define is included, the decoder will also + * check for end-of-strip w/o seeing this code. This makes the + * library more robust, but also slower. + */ +#define LZW_CHECKEOS /* include checks for strips w/o EOI code */ + +#define MAXCODE(n) ((1L<<(n))-1) +/* + * The TIFF spec specifies that encoded bit + * strings range from 9 to 12 bits. + */ +#define BITS_MIN 9 /* start with 9 bits */ +#define BITS_MAX 12 /* max of 12 bit strings */ +/* predefined codes */ +#define CODE_CLEAR 256 /* code to clear string table */ +#define CODE_EOI 257 /* end-of-information code */ +#define CODE_FIRST 258 /* first free code entry */ +#define CODE_MAX MAXCODE(BITS_MAX) +#define HSIZE 9001L /* 91% occupancy */ +#define HSHIFT (13-8) +#ifdef LZW_COMPAT +/* NB: +1024 is for compatibility with old files */ +#define CSIZE (MAXCODE(BITS_MAX)+1024L) +#else +#define CSIZE (MAXCODE(BITS_MAX)+1L) +#endif + +/* + * State block for each open TIFF file using LZW + * compression/decompression. Note that the predictor + * state block must be first in this data structure. + */ +typedef struct { + TIFFPredictorState predict; /* predictor super class */ + + unsigned short nbits; /* # of bits/code */ + unsigned short maxcode; /* maximum code for lzw_nbits */ + unsigned short free_ent; /* next free entry in hash table */ + long nextdata; /* next bits of i/o */ + long nextbits; /* # of valid bits in lzw_nextdata */ + + int rw_mode; /* preserve rw_mode from init */ +} LZWBaseState; + +#define lzw_nbits base.nbits +#define lzw_maxcode base.maxcode +#define lzw_free_ent base.free_ent +#define lzw_nextdata base.nextdata +#define lzw_nextbits base.nextbits + +/* + * Encoding-specific state. + */ +typedef uint16 hcode_t; /* codes fit in 16 bits */ +typedef struct { + long hash; + hcode_t code; +} hash_t; + +/* + * Decoding-specific state. + */ +typedef struct code_ent { + struct code_ent *next; + unsigned short length; /* string len, including this token */ + unsigned char value; /* data value */ + unsigned char firstchar; /* first token of string */ +} code_t; + +typedef int (*decodeFunc)(TIFF*, tidata_t, tsize_t, tsample_t); + +typedef struct { + LZWBaseState base; + + /* Decoding specific data */ + long dec_nbitsmask; /* lzw_nbits 1 bits, right adjusted */ + long dec_restart; /* restart count */ +#ifdef LZW_CHECKEOS + long dec_bitsleft; /* available bits in raw data */ +#endif + decodeFunc dec_decode; /* regular or backwards compatible */ + code_t* dec_codep; /* current recognized code */ + code_t* dec_oldcodep; /* previously recognized code */ + code_t* dec_free_entp; /* next free entry */ + code_t* dec_maxcodep; /* max available entry */ + code_t* dec_codetab; /* kept separate for small machines */ + + /* Encoding specific data */ + int enc_oldcode; /* last code encountered */ + long enc_checkpoint; /* point at which to clear table */ +#define CHECK_GAP 10000 /* enc_ratio check interval */ + long enc_ratio; /* current compression ratio */ + long enc_incount; /* (input) data bytes encoded */ + long enc_outcount; /* encoded (output) bytes */ + tidata_t enc_rawlimit; /* bound on tif_rawdata buffer */ + hash_t* enc_hashtab; /* kept separate for small machines */ +} LZWCodecState; + +#define LZWState(tif) ((LZWBaseState*) (tif)->tif_data) +#define DecoderState(tif) ((LZWCodecState*) LZWState(tif)) +#define EncoderState(tif) ((LZWCodecState*) LZWState(tif)) + +static int LZWDecode(TIFF*, tidata_t, tsize_t, tsample_t); +#ifdef LZW_COMPAT +static int LZWDecodeCompat(TIFF*, tidata_t, tsize_t, tsample_t); +#endif +static void cl_hash(LZWCodecState*); + +/* + * LZW Decoder. + */ + +#ifdef LZW_CHECKEOS +/* + * This check shouldn't be necessary because each + * strip is suppose to be terminated with CODE_EOI. + */ +#define NextCode(_tif, _sp, _bp, _code, _get) { \ + if ((_sp)->dec_bitsleft < nbits) { \ + TIFFWarningExt(_tif->tif_clientdata, _tif->tif_name, \ + "LZWDecode: Strip %d not terminated with EOI code", \ + _tif->tif_curstrip); \ + _code = CODE_EOI; \ + } else { \ + _get(_sp,_bp,_code); \ + (_sp)->dec_bitsleft -= nbits; \ + } \ +} +#else +#define NextCode(tif, sp, bp, code, get) get(sp, bp, code) +#endif + +static int +LZWSetupDecode(TIFF* tif) +{ + LZWCodecState* sp = DecoderState(tif); + static const char module[] = " LZWSetupDecode"; + int code; + + if( sp == NULL ) + { + /* + * Allocate state block so tag methods have storage to record + * values. + */ + tif->tif_data = (tidata_t) _TIFFmalloc(sizeof(LZWCodecState)); + if (tif->tif_data == NULL) + { + TIFFErrorExt(tif->tif_clientdata, "LZWPreDecode", "No space for LZW state block"); + return (0); + } + + DecoderState(tif)->dec_codetab = NULL; + DecoderState(tif)->dec_decode = NULL; + + /* + * Setup predictor setup. + */ + (void) TIFFPredictorInit(tif); + + sp = DecoderState(tif); + } + + assert(sp != NULL); + + if (sp->dec_codetab == NULL) { + sp->dec_codetab = (code_t*)_TIFFmalloc(CSIZE*sizeof (code_t)); + if (sp->dec_codetab == NULL) { + TIFFErrorExt(tif->tif_clientdata, module, + "No space for LZW code table"); + return (0); + } + /* + * Pre-load the table. + */ + code = 255; + do { + sp->dec_codetab[code].value = code; + sp->dec_codetab[code].firstchar = code; + sp->dec_codetab[code].length = 1; + sp->dec_codetab[code].next = NULL; + } while (code--); + /* + * Zero-out the unused entries + */ + _TIFFmemset(&sp->dec_codetab[CODE_CLEAR], 0, + (CODE_FIRST - CODE_CLEAR) * sizeof (code_t)); + } + return (1); +} + +/* + * Setup state for decoding a strip. + */ +static int +LZWPreDecode(TIFF* tif, tsample_t s) +{ + LZWCodecState *sp = DecoderState(tif); + + (void) s; + assert(sp != NULL); + if( sp->dec_codetab == NULL ) + { + tif->tif_setupdecode( tif ); + } + + /* + * Check for old bit-reversed codes. + */ + if (tif->tif_rawdata[0] == 0 && (tif->tif_rawdata[1] & 0x1)) { +#ifdef LZW_COMPAT + if (!sp->dec_decode) { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "Old-style LZW codes, convert file"); + /* + * Override default decoding methods with + * ones that deal with the old coding. + * Otherwise the predictor versions set + * above will call the compatibility routines + * through the dec_decode method. + */ + tif->tif_decoderow = LZWDecodeCompat; + tif->tif_decodestrip = LZWDecodeCompat; + tif->tif_decodetile = LZWDecodeCompat; + /* + * If doing horizontal differencing, must + * re-setup the predictor logic since we + * switched the basic decoder methods... + */ + (*tif->tif_setupdecode)(tif); + sp->dec_decode = LZWDecodeCompat; + } + sp->lzw_maxcode = MAXCODE(BITS_MIN); +#else /* !LZW_COMPAT */ + if (!sp->dec_decode) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Old-style LZW codes not supported"); + sp->dec_decode = LZWDecode; + } + return (0); +#endif/* !LZW_COMPAT */ + } else { + sp->lzw_maxcode = MAXCODE(BITS_MIN)-1; + sp->dec_decode = LZWDecode; + } + sp->lzw_nbits = BITS_MIN; + sp->lzw_nextbits = 0; + sp->lzw_nextdata = 0; + + sp->dec_restart = 0; + sp->dec_nbitsmask = MAXCODE(BITS_MIN); +#ifdef LZW_CHECKEOS + sp->dec_bitsleft = tif->tif_rawcc << 3; +#endif + sp->dec_free_entp = sp->dec_codetab + CODE_FIRST; + /* + * Zero entries that are not yet filled in. We do + * this to guard against bogus input data that causes + * us to index into undefined entries. If you can + * come up with a way to safely bounds-check input codes + * while decoding then you can remove this operation. + */ + _TIFFmemset(sp->dec_free_entp, 0, (CSIZE-CODE_FIRST)*sizeof (code_t)); + sp->dec_oldcodep = &sp->dec_codetab[-1]; + sp->dec_maxcodep = &sp->dec_codetab[sp->dec_nbitsmask-1]; + return (1); +} + +/* + * Decode a "hunk of data". + */ +#define GetNextCode(sp, bp, code) { \ + nextdata = (nextdata<<8) | *(bp)++; \ + nextbits += 8; \ + if (nextbits < nbits) { \ + nextdata = (nextdata<<8) | *(bp)++; \ + nextbits += 8; \ + } \ + code = (hcode_t)((nextdata >> (nextbits-nbits)) & nbitsmask); \ + nextbits -= nbits; \ +} + +static void +codeLoop(TIFF* tif) +{ + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Bogus encoding, loop in the code table; scanline %d", + tif->tif_row); +} + +static int +LZWDecode(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) +{ + LZWCodecState *sp = DecoderState(tif); + char *op = (char*) op0; + long occ = (long) occ0; + char *tp; + unsigned char *bp; + hcode_t code; + int len; + long nbits, nextbits, nextdata, nbitsmask; + code_t *codep, *free_entp, *maxcodep, *oldcodep; + + (void) s; + assert(sp != NULL); + assert(sp->dec_codetab != NULL); + /* + * Restart interrupted output operation. + */ + if (sp->dec_restart) { + long residue; + + codep = sp->dec_codep; + residue = codep->length - sp->dec_restart; + if (residue > occ) { + /* + * Residue from previous decode is sufficient + * to satisfy decode request. Skip to the + * start of the decoded string, place decoded + * values in the output buffer, and return. + */ + sp->dec_restart += occ; + do { + codep = codep->next; + } while (--residue > occ && codep); + if (codep) { + tp = op + occ; + do { + *--tp = codep->value; + codep = codep->next; + } while (--occ && codep); + } + return (1); + } + /* + * Residue satisfies only part of the decode request. + */ + op += residue, occ -= residue; + tp = op; + do { + int t; + --tp; + t = codep->value; + codep = codep->next; + *tp = t; + } while (--residue && codep); + sp->dec_restart = 0; + } + + bp = (unsigned char *)tif->tif_rawcp; + nbits = sp->lzw_nbits; + nextdata = sp->lzw_nextdata; + nextbits = sp->lzw_nextbits; + nbitsmask = sp->dec_nbitsmask; + oldcodep = sp->dec_oldcodep; + free_entp = sp->dec_free_entp; + maxcodep = sp->dec_maxcodep; + + while (occ > 0) { + NextCode(tif, sp, bp, code, GetNextCode); + if (code == CODE_EOI) + break; + if (code == CODE_CLEAR) { + free_entp = sp->dec_codetab + CODE_FIRST; + _TIFFmemset(free_entp, 0, + (CSIZE - CODE_FIRST) * sizeof (code_t)); + nbits = BITS_MIN; + nbitsmask = MAXCODE(BITS_MIN); + maxcodep = sp->dec_codetab + nbitsmask-1; + NextCode(tif, sp, bp, code, GetNextCode); + if (code == CODE_EOI) + break; + if (code == CODE_CLEAR) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } + *op++ = (char)code, occ--; + oldcodep = sp->dec_codetab + code; + continue; + } + codep = sp->dec_codetab + code; + + /* + * Add the new entry to the code table. + */ + if (free_entp < &sp->dec_codetab[0] || + free_entp >= &sp->dec_codetab[CSIZE]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } + + free_entp->next = oldcodep; + if (free_entp->next < &sp->dec_codetab[0] || + free_entp->next >= &sp->dec_codetab[CSIZE]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } + free_entp->firstchar = free_entp->next->firstchar; + free_entp->length = free_entp->next->length+1; + free_entp->value = (codep < free_entp) ? + codep->firstchar : free_entp->firstchar; + if (++free_entp > maxcodep) { + if (++nbits > BITS_MAX) /* should not happen */ + nbits = BITS_MAX; + nbitsmask = MAXCODE(nbits); + maxcodep = sp->dec_codetab + nbitsmask-1; + } + oldcodep = codep; + if (code >= 256) { + /* + * Code maps to a string, copy string + * value to output (written in reverse). + */ + if(codep->length == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Wrong length of decoded string: " + "data probably corrupted at scanline %d", + tif->tif_row); + return (0); + } + if (codep->length > occ) { + /* + * String is too long for decode buffer, + * locate portion that will fit, copy to + * the decode buffer, and setup restart + * logic for the next decoding call. + */ + sp->dec_codep = codep; + do { + codep = codep->next; + } while (codep && codep->length > occ); + if (codep) { + sp->dec_restart = occ; + tp = op + occ; + do { + *--tp = codep->value; + codep = codep->next; + } while (--occ && codep); + if (codep) + codeLoop(tif); + } + break; + } + len = codep->length; + tp = op + len; + do { + int t; + --tp; + t = codep->value; + codep = codep->next; + *tp = t; + } while (codep && tp > op); + if (codep) { + codeLoop(tif); + break; + } + op += len, occ -= len; + } else + *op++ = (char)code, occ--; + } + + tif->tif_rawcp = (tidata_t) bp; + sp->lzw_nbits = (unsigned short) nbits; + sp->lzw_nextdata = nextdata; + sp->lzw_nextbits = nextbits; + sp->dec_nbitsmask = nbitsmask; + sp->dec_oldcodep = oldcodep; + sp->dec_free_entp = free_entp; + sp->dec_maxcodep = maxcodep; + + if (occ > 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Not enough data at scanline %d (short %ld bytes)", + tif->tif_row, occ); + return (0); + } + return (1); +} + +#ifdef LZW_COMPAT +/* + * Decode a "hunk of data" for old images. + */ +#define GetNextCodeCompat(sp, bp, code) { \ + nextdata |= (unsigned long) *(bp)++ << nextbits; \ + nextbits += 8; \ + if (nextbits < nbits) { \ + nextdata |= (unsigned long) *(bp)++ << nextbits;\ + nextbits += 8; \ + } \ + code = (hcode_t)(nextdata & nbitsmask); \ + nextdata >>= nbits; \ + nextbits -= nbits; \ +} + +static int +LZWDecodeCompat(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) +{ + LZWCodecState *sp = DecoderState(tif); + char *op = (char*) op0; + long occ = (long) occ0; + char *tp; + unsigned char *bp; + int code, nbits; + long nextbits, nextdata, nbitsmask; + code_t *codep, *free_entp, *maxcodep, *oldcodep; + + (void) s; + assert(sp != NULL); + /* + * Restart interrupted output operation. + */ + if (sp->dec_restart) { + long residue; + + codep = sp->dec_codep; + residue = codep->length - sp->dec_restart; + if (residue > occ) { + /* + * Residue from previous decode is sufficient + * to satisfy decode request. Skip to the + * start of the decoded string, place decoded + * values in the output buffer, and return. + */ + sp->dec_restart += occ; + do { + codep = codep->next; + } while (--residue > occ); + tp = op + occ; + do { + *--tp = codep->value; + codep = codep->next; + } while (--occ); + return (1); + } + /* + * Residue satisfies only part of the decode request. + */ + op += residue, occ -= residue; + tp = op; + do { + *--tp = codep->value; + codep = codep->next; + } while (--residue); + sp->dec_restart = 0; + } + + bp = (unsigned char *)tif->tif_rawcp; + nbits = sp->lzw_nbits; + nextdata = sp->lzw_nextdata; + nextbits = sp->lzw_nextbits; + nbitsmask = sp->dec_nbitsmask; + oldcodep = sp->dec_oldcodep; + free_entp = sp->dec_free_entp; + maxcodep = sp->dec_maxcodep; + + while (occ > 0) { + NextCode(tif, sp, bp, code, GetNextCodeCompat); + if (code == CODE_EOI) + break; + if (code == CODE_CLEAR) { + free_entp = sp->dec_codetab + CODE_FIRST; + _TIFFmemset(free_entp, 0, + (CSIZE - CODE_FIRST) * sizeof (code_t)); + nbits = BITS_MIN; + nbitsmask = MAXCODE(BITS_MIN); + maxcodep = sp->dec_codetab + nbitsmask; + NextCode(tif, sp, bp, code, GetNextCodeCompat); + if (code == CODE_EOI) + break; + if (code == CODE_CLEAR) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecode: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } + *op++ = code, occ--; + oldcodep = sp->dec_codetab + code; + continue; + } + codep = sp->dec_codetab + code; + + /* + * Add the new entry to the code table. + */ + if (free_entp < &sp->dec_codetab[0] || + free_entp >= &sp->dec_codetab[CSIZE]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecodeCompat: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } + + free_entp->next = oldcodep; + if (free_entp->next < &sp->dec_codetab[0] || + free_entp->next >= &sp->dec_codetab[CSIZE]) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecodeCompat: Corrupted LZW table at scanline %d", + tif->tif_row); + return (0); + } + free_entp->firstchar = free_entp->next->firstchar; + free_entp->length = free_entp->next->length+1; + free_entp->value = (codep < free_entp) ? + codep->firstchar : free_entp->firstchar; + if (++free_entp > maxcodep) { + if (++nbits > BITS_MAX) /* should not happen */ + nbits = BITS_MAX; + nbitsmask = MAXCODE(nbits); + maxcodep = sp->dec_codetab + nbitsmask; + } + oldcodep = codep; + if (code >= 256) { + char *op_orig = op; + /* + * Code maps to a string, copy string + * value to output (written in reverse). + */ + if(codep->length == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecodeCompat: Wrong length of decoded " + "string: data probably corrupted at scanline %d", + tif->tif_row); + return (0); + } + if (codep->length > occ) { + /* + * String is too long for decode buffer, + * locate portion that will fit, copy to + * the decode buffer, and setup restart + * logic for the next decoding call. + */ + sp->dec_codep = codep; + do { + codep = codep->next; + } while (codep->length > occ); + sp->dec_restart = occ; + tp = op + occ; + do { + *--tp = codep->value; + codep = codep->next; + } while (--occ); + break; + } + op += codep->length, occ -= codep->length; + tp = op; + do { + *--tp = codep->value; + } while( (codep = codep->next) != NULL && tp > op_orig); + } else + *op++ = code, occ--; + } + + tif->tif_rawcp = (tidata_t) bp; + sp->lzw_nbits = nbits; + sp->lzw_nextdata = nextdata; + sp->lzw_nextbits = nextbits; + sp->dec_nbitsmask = nbitsmask; + sp->dec_oldcodep = oldcodep; + sp->dec_free_entp = free_entp; + sp->dec_maxcodep = maxcodep; + + if (occ > 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "LZWDecodeCompat: Not enough data at scanline %d (short %ld bytes)", + tif->tif_row, occ); + return (0); + } + return (1); +} +#endif /* LZW_COMPAT */ + +/* + * LZW Encoding. + */ + +static int +LZWSetupEncode(TIFF* tif) +{ + LZWCodecState* sp = EncoderState(tif); + static const char module[] = "LZWSetupEncode"; + + assert(sp != NULL); + sp->enc_hashtab = (hash_t*) _TIFFmalloc(HSIZE*sizeof (hash_t)); + if (sp->enc_hashtab == NULL) { + TIFFErrorExt(tif->tif_clientdata, module, "No space for LZW hash table"); + return (0); + } + return (1); +} + +/* + * Reset encoding state at the start of a strip. + */ +static int +LZWPreEncode(TIFF* tif, tsample_t s) +{ + LZWCodecState *sp = EncoderState(tif); + + (void) s; + assert(sp != NULL); + + if( sp->enc_hashtab == NULL ) + { + tif->tif_setupencode( tif ); + } + + sp->lzw_nbits = BITS_MIN; + sp->lzw_maxcode = MAXCODE(BITS_MIN); + sp->lzw_free_ent = CODE_FIRST; + sp->lzw_nextbits = 0; + sp->lzw_nextdata = 0; + sp->enc_checkpoint = CHECK_GAP; + sp->enc_ratio = 0; + sp->enc_incount = 0; + sp->enc_outcount = 0; + /* + * The 4 here insures there is space for 2 max-sized + * codes in LZWEncode and LZWPostDecode. + */ + sp->enc_rawlimit = tif->tif_rawdata + tif->tif_rawdatasize-1 - 4; + cl_hash(sp); /* clear hash table */ + sp->enc_oldcode = (hcode_t) -1; /* generates CODE_CLEAR in LZWEncode */ + return (1); +} + +#define CALCRATIO(sp, rat) { \ + if (incount > 0x007fffff) { /* NB: shift will overflow */\ + rat = outcount >> 8; \ + rat = (rat == 0 ? 0x7fffffff : incount/rat); \ + } else \ + rat = (incount<<8) / outcount; \ +} +#define PutNextCode(op, c) { \ + nextdata = (nextdata << nbits) | c; \ + nextbits += nbits; \ + *op++ = (unsigned char)(nextdata >> (nextbits-8)); \ + nextbits -= 8; \ + if (nextbits >= 8) { \ + *op++ = (unsigned char)(nextdata >> (nextbits-8)); \ + nextbits -= 8; \ + } \ + outcount += nbits; \ +} + +/* + * Encode a chunk of pixels. + * + * Uses an open addressing double hashing (no chaining) on the + * prefix code/next character combination. We do a variant of + * Knuth's algorithm D (vol. 3, sec. 6.4) along with G. Knott's + * relatively-prime secondary probe. Here, the modular division + * first probe is gives way to a faster exclusive-or manipulation. + * Also do block compression with an adaptive reset, whereby the + * code table is cleared when the compression ratio decreases, + * but after the table fills. The variable-length output codes + * are re-sized at this point, and a CODE_CLEAR is generated + * for the decoder. + */ +static int +LZWEncode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + register LZWCodecState *sp = EncoderState(tif); + register long fcode; + register hash_t *hp; + register int h, c; + hcode_t ent; + long disp; + long incount, outcount, checkpoint; + long nextdata, nextbits; + int free_ent, maxcode, nbits; + tidata_t op, limit; + + (void) s; + if (sp == NULL) + return (0); + + assert(sp->enc_hashtab != NULL); + + /* + * Load local state. + */ + incount = sp->enc_incount; + outcount = sp->enc_outcount; + checkpoint = sp->enc_checkpoint; + nextdata = sp->lzw_nextdata; + nextbits = sp->lzw_nextbits; + free_ent = sp->lzw_free_ent; + maxcode = sp->lzw_maxcode; + nbits = sp->lzw_nbits; + op = tif->tif_rawcp; + limit = sp->enc_rawlimit; + ent = sp->enc_oldcode; + + if (ent == (hcode_t) -1 && cc > 0) { + /* + * NB: This is safe because it can only happen + * at the start of a strip where we know there + * is space in the data buffer. + */ + PutNextCode(op, CODE_CLEAR); + ent = *bp++; cc--; incount++; + } + while (cc > 0) { + c = *bp++; cc--; incount++; + fcode = ((long)c << BITS_MAX) + ent; + h = (c << HSHIFT) ^ ent; /* xor hashing */ +#ifdef _WINDOWS + /* + * Check hash index for an overflow. + */ + if (h >= HSIZE) + h -= HSIZE; +#endif + hp = &sp->enc_hashtab[h]; + if (hp->hash == fcode) { + ent = hp->code; + continue; + } + if (hp->hash >= 0) { + /* + * Primary hash failed, check secondary hash. + */ + disp = HSIZE - h; + if (h == 0) + disp = 1; + do { + /* + * Avoid pointer arithmetic 'cuz of + * wraparound problems with segments. + */ + if ((h -= disp) < 0) + h += HSIZE; + hp = &sp->enc_hashtab[h]; + if (hp->hash == fcode) { + ent = hp->code; + goto hit; + } + } while (hp->hash >= 0); + } + /* + * New entry, emit code and add to table. + */ + /* + * Verify there is space in the buffer for the code + * and any potential Clear code that might be emitted + * below. The value of limit is setup so that there + * are at least 4 bytes free--room for 2 codes. + */ + if (op > limit) { + tif->tif_rawcc = (tsize_t)(op - tif->tif_rawdata); + TIFFFlushData1(tif); + op = tif->tif_rawdata; + } + PutNextCode(op, ent); + ent = c; + hp->code = free_ent++; + hp->hash = fcode; + if (free_ent == CODE_MAX-1) { + /* table is full, emit clear code and reset */ + cl_hash(sp); + sp->enc_ratio = 0; + incount = 0; + outcount = 0; + free_ent = CODE_FIRST; + PutNextCode(op, CODE_CLEAR); + nbits = BITS_MIN; + maxcode = MAXCODE(BITS_MIN); + } else { + /* + * If the next entry is going to be too big for + * the code size, then increase it, if possible. + */ + if (free_ent > maxcode) { + nbits++; + assert(nbits <= BITS_MAX); + maxcode = (int) MAXCODE(nbits); + } else if (incount >= checkpoint) { + long rat; + /* + * Check compression ratio and, if things seem + * to be slipping, clear the hash table and + * reset state. The compression ratio is a + * 24+8-bit fractional number. + */ + checkpoint = incount+CHECK_GAP; + CALCRATIO(sp, rat); + if (rat <= sp->enc_ratio) { + cl_hash(sp); + sp->enc_ratio = 0; + incount = 0; + outcount = 0; + free_ent = CODE_FIRST; + PutNextCode(op, CODE_CLEAR); + nbits = BITS_MIN; + maxcode = MAXCODE(BITS_MIN); + } else + sp->enc_ratio = rat; + } + } + hit: + ; + } + + /* + * Restore global state. + */ + sp->enc_incount = incount; + sp->enc_outcount = outcount; + sp->enc_checkpoint = checkpoint; + sp->enc_oldcode = ent; + sp->lzw_nextdata = nextdata; + sp->lzw_nextbits = nextbits; + sp->lzw_free_ent = free_ent; + sp->lzw_maxcode = maxcode; + sp->lzw_nbits = nbits; + tif->tif_rawcp = op; + return (1); +} + +/* + * Finish off an encoded strip by flushing the last + * string and tacking on an End Of Information code. + */ +static int +LZWPostEncode(TIFF* tif) +{ + register LZWCodecState *sp = EncoderState(tif); + tidata_t op = tif->tif_rawcp; + long nextbits = sp->lzw_nextbits; + long nextdata = sp->lzw_nextdata; + long outcount = sp->enc_outcount; + int nbits = sp->lzw_nbits; + + if (op > sp->enc_rawlimit) { + tif->tif_rawcc = (tsize_t)(op - tif->tif_rawdata); + TIFFFlushData1(tif); + op = tif->tif_rawdata; + } + if (sp->enc_oldcode != (hcode_t) -1) { + PutNextCode(op, sp->enc_oldcode); + sp->enc_oldcode = (hcode_t) -1; + } + PutNextCode(op, CODE_EOI); + if (nextbits > 0) + *op++ = (unsigned char)(nextdata << (8-nextbits)); + tif->tif_rawcc = (tsize_t)(op - tif->tif_rawdata); + return (1); +} + +/* + * Reset encoding hash table. + */ +static void +cl_hash(LZWCodecState* sp) +{ + register hash_t *hp = &sp->enc_hashtab[HSIZE-1]; + register long i = HSIZE-8; + + do { + i -= 8; + hp[-7].hash = -1; + hp[-6].hash = -1; + hp[-5].hash = -1; + hp[-4].hash = -1; + hp[-3].hash = -1; + hp[-2].hash = -1; + hp[-1].hash = -1; + hp[ 0].hash = -1; + hp -= 8; + } while (i >= 0); + for (i += 8; i > 0; i--, hp--) + hp->hash = -1; +} + +static void +LZWCleanup(TIFF* tif) +{ + (void)TIFFPredictorCleanup(tif); + + assert(tif->tif_data != 0); + + if (DecoderState(tif)->dec_codetab) + _TIFFfree(DecoderState(tif)->dec_codetab); + + if (EncoderState(tif)->enc_hashtab) + _TIFFfree(EncoderState(tif)->enc_hashtab); + + _TIFFfree(tif->tif_data); + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +int +TIFFInitLZW(TIFF* tif, int scheme) +{ + assert(scheme == COMPRESSION_LZW); + /* + * Allocate state block so tag methods have storage to record values. + */ + tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (LZWCodecState)); + if (tif->tif_data == NULL) + goto bad; + DecoderState(tif)->dec_codetab = NULL; + DecoderState(tif)->dec_decode = NULL; + EncoderState(tif)->enc_hashtab = NULL; + LZWState(tif)->rw_mode = tif->tif_mode; + + /* + * Install codec methods. + */ + tif->tif_setupdecode = LZWSetupDecode; + tif->tif_predecode = LZWPreDecode; + tif->tif_decoderow = LZWDecode; + tif->tif_decodestrip = LZWDecode; + tif->tif_decodetile = LZWDecode; + tif->tif_setupencode = LZWSetupEncode; + tif->tif_preencode = LZWPreEncode; + tif->tif_postencode = LZWPostEncode; + tif->tif_encoderow = LZWEncode; + tif->tif_encodestrip = LZWEncode; + tif->tif_encodetile = LZWEncode; + tif->tif_cleanup = LZWCleanup; + /* + * Setup predictor setup. + */ + (void) TIFFPredictorInit(tif); + return (1); +bad: + TIFFErrorExt(tif->tif_clientdata, "TIFFInitLZW", + "No space for LZW state block"); + return (0); +} + +/* + * Copyright (c) 1985, 1986 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * James A. Woods, derived from original work by Spencer Thomas + * and Joseph Orost. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by the University of California, Berkeley. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ +#endif /* LZW_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_msdos.c b/tiff/libtiff/tif_msdos.c new file mode 100644 index 0000000..6ddbfcd --- /dev/null +++ b/tiff/libtiff/tif_msdos.c @@ -0,0 +1,193 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_msdos.c,v 1.3.2.1 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library MSDOS-specific Routines. + */ +#if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(_MSC_VER) +#include <io.h> /* for open, close, etc. function prototypes */ +#include <stdio.h> +#endif +#include "tiffiop.h" + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return (read((int) fd, buf, size)); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return (write((int) fd, buf, size)); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + return (lseek((int) fd, (off_t) off, whence)); +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (close((int) fd)); +} + +#include <sys/stat.h> + +static toff_t +_tiffSizeProc(thandle_t fd) +{ + struct stat sb; + return (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); +} + +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ +} + +/* + * Open a TIFF file descriptor for read/writing. + */ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, + (void*) fd, + _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, + _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); + if (tif) + tif->tif_fd = fd; + return (tif); +} + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + int m, fd; + TIFF *ret; + + m = _TIFFgetMode(mode, module); + if (m == -1) + return ((TIFF*)0); + fd = open(name, m|O_BINARY, 0666); + if (fd < 0) { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF*)0); + } + return (TIFFFdOpen(fd, name, mode)); + + ret = TIFFFdOpen(fd, name, mode); + + if (ret == NULL) close(fd); + + return ret; +} + +#ifdef __GNUC__ +extern char* malloc(); +extern char* realloc(); +#else +#include <malloc.h> +#endif + +tdata_t +_TIFFmalloc(tsize_t s) +{ + return (malloc((size_t) s)); +} + +void +_TIFFfree(tdata_t p) +{ + free(p); +} + +tdata_t +_TIFFrealloc(tdata_t p, tsize_t s) +{ + return (realloc(p, (size_t) s)); +} + +void +_TIFFmemset(tdata_t p, int v, tsize_t c) +{ + memset(p, v, (size_t) c); +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) +{ + memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + return (memcmp(p1, p2, (size_t) c)); +} + +static void +msdosWarningHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFwarningHandler = msdosWarningHandler; + +static void +msdosErrorHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFerrorHandler = msdosErrorHandler; +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_next.c b/tiff/libtiff/tif_next.c new file mode 100644 index 0000000..d7652bb --- /dev/null +++ b/tiff/libtiff/tif_next.c @@ -0,0 +1,154 @@ +/* $Id: tif_next.c,v 1.8.2.1 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef NEXT_SUPPORT +/* + * TIFF Library. + * + * NeXT 2-bit Grey Scale Compression Algorithm Support + */ + +#define SETPIXEL(op, v) { \ + switch (npixels++ & 3) { \ + case 0: op[0] = (unsigned char) ((v) << 6); break; \ + case 1: op[0] |= (v) << 4; break; \ + case 2: op[0] |= (v) << 2; break; \ + case 3: *op++ |= (v); break; \ + } \ +} + +#define LITERALROW 0x00 +#define LITERALSPAN 0x40 +#define WHITE ((1<<2)-1) + +static int +NeXTDecode(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +{ + unsigned char *bp, *op; + tsize_t cc; + tidata_t row; + tsize_t scanline, n; + + (void) s; + /* + * Each scanline is assumed to start off as all + * white (we assume a PhotometricInterpretation + * of ``min-is-black''). + */ + for (op = buf, cc = occ; cc-- > 0;) + *op++ = 0xff; + + bp = (unsigned char *)tif->tif_rawcp; + cc = tif->tif_rawcc; + scanline = tif->tif_scanlinesize; + for (row = buf; occ > 0; occ -= scanline, row += scanline) { + n = *bp++, cc--; + switch (n) { + case LITERALROW: + /* + * The entire scanline is given as literal values. + */ + if (cc < scanline) + goto bad; + _TIFFmemcpy(row, bp, scanline); + bp += scanline; + cc -= scanline; + break; + case LITERALSPAN: { + tsize_t off; + /* + * The scanline has a literal span that begins at some + * offset. + */ + off = (bp[0] * 256) + bp[1]; + n = (bp[2] * 256) + bp[3]; + if (cc < 4+n || off+n > scanline) + goto bad; + _TIFFmemcpy(row+off, bp+4, n); + bp += 4+n; + cc -= 4+n; + break; + } + default: { + uint32 npixels = 0, grey; + uint32 imagewidth = tif->tif_dir.td_imagewidth; + + /* + * The scanline is composed of a sequence of constant + * color ``runs''. We shift into ``run mode'' and + * interpret bytes as codes of the form + * <color><npixels> until we've filled the scanline. + */ + op = row; + for (;;) { + grey = (n>>6) & 0x3; + n &= 0x3f; + /* + * Ensure the run does not exceed the scanline + * bounds, potentially resulting in a security + * issue. + */ + while (n-- > 0 && npixels < imagewidth) + SETPIXEL(op, grey); + if (npixels >= imagewidth) + break; + if (cc == 0) + goto bad; + n = *bp++, cc--; + } + break; + } + } + } + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + return (1); +bad: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "NeXTDecode: Not enough data for scanline %ld", + (long) tif->tif_row); + return (0); +} + +int +TIFFInitNeXT(TIFF* tif, int scheme) +{ + (void) scheme; + tif->tif_decoderow = NeXTDecode; + tif->tif_decodestrip = NeXTDecode; + tif->tif_decodetile = NeXTDecode; + return (1); +} +#endif /* NEXT_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_ojpeg.c b/tiff/libtiff/tif_ojpeg.c new file mode 100644 index 0000000..9ae856c --- /dev/null +++ b/tiff/libtiff/tif_ojpeg.c @@ -0,0 +1,2438 @@ +/* $Id: tif_ojpeg.c,v 1.24.2.6 2010-06-08 23:29:51 bfriesen Exp $ */ + +/* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0 + specification is now totally obsolete and deprecated for new applications and + images. This file was was created solely in order to read unconverted images + still present on some users' computer systems. It will never be extended + to write such files. Writing new-style JPEG compressed TIFFs is implemented + in tif_jpeg.c. + + The code is carefully crafted to robustly read all gathered JPEG-in-TIFF + testfiles, and anticipate as much as possible all other... But still, it may + fail on some. If you encounter problems, please report them on the TIFF + mailing list and/or to Joris Van Damme <info@awaresystems.be>. + + Please read the file called "TIFF Technical Note #2" if you need to be + convinced this compression scheme is bad and breaks TIFF. That document + is linked to from the LibTiff site <http://www.remotesensing.org/libtiff/> + and from AWare Systems' TIFF section + <http://www.awaresystems.be/imaging/tiff.html>. It is also absorbed + in Adobe's specification supplements, marked "draft" up to this day, but + supported by the TIFF community. + + This file interfaces with Release 6B of the JPEG Library written by the + Independent JPEG Group. Previous versions of this file required a hack inside + the LibJpeg library. This version no longer requires that. Remember to + remove the hack if you update from the old version. + + Copyright (c) Joris Van Damme <info@awaresystems.be> + Copyright (c) AWare Systems <http://www.awaresystems.be/> + + The licence agreement for this file is the same as the rest of the LibTiff + library. + + IN NO EVENT SHALL JORIS VAN DAMME OR AWARE SYSTEMS BE LIABLE FOR + ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + OF THIS SOFTWARE. + + Joris Van Damme and/or AWare Systems may be available for custom + developement. If you like what you see, and need anything similar or related, + contact <info@awaresystems.be>. +*/ + +/* What is what, and what is not? + + This decoder starts with an input stream, that is essentially the JpegInterchangeFormat + stream, if any, followed by the strile data, if any. This stream is read in + OJPEGReadByte and related functions. + + It analyzes the start of this stream, until it encounters non-marker data, i.e. + compressed image data. Some of the header markers it sees have no actual content, + like the SOI marker, and APP/COM markers that really shouldn't even be there. Some + other markers do have content, and the valuable bits and pieces of information + in these markers are saved, checking all to verify that the stream is more or + less within expected bounds. This happens inside the OJPEGReadHeaderInfoSecStreamXxx + functions. + + Some OJPEG imagery contains no valid JPEG header markers. This situation is picked + up on if we've seen no SOF marker when we're at the start of the compressed image + data. In this case, the tables are read from JpegXxxTables tags, and the other + bits and pieces of information is initialized to its most basic value. This is + implemented in the OJPEGReadHeaderInfoSecTablesXxx functions. + + When this is complete, a good and valid JPEG header can be assembled, and this is + passed through to LibJpeg. When that's done, the remainder of the input stream, i.e. + the compressed image data, can be passed through unchanged. This is done in + OJPEGWriteStream functions. + + LibTiff rightly expects to know the subsampling values before decompression. Just like + in new-style JPEG-in-TIFF, though, or even more so, actually, the YCbCrsubsampling + tag is notoriously unreliable. To correct these tag values with the ones inside + the JPEG stream, the first part of the input stream is pre-scanned in + OJPEGSubsamplingCorrect, making no note of any other data, reporting no warnings + or errors, up to the point where either these values are read, or it's clear they + aren't there. This means that some of the data is read twice, but we feel speed + in correcting these values is important enough to warrant this sacrifice. Allthough + there is currently no define or other configuration mechanism to disable this behaviour, + the actual header scanning is build to robustly respond with error report if it + should encounter an uncorrected mismatch of subsampling values. See + OJPEGReadHeaderInfoSecStreamSof. + + The restart interval and restart markers are the most tricky part... The restart + interval can be specified in a tag. It can also be set inside the input JPEG stream. + It can be used inside the input JPEG stream. If reading from strile data, we've + consistenly discovered the need to insert restart markers in between the different + striles, as is also probably the most likely interpretation of the original TIFF 6.0 + specification. With all this setting of interval, and actual use of markers that is not + predictable at the time of valid JPEG header assembly, the restart thing may turn + out the Achilles heel of this implementation. Fortunately, most OJPEG writer vendors + succeed in reading back what they write, which may be the reason why we've been able + to discover ways that seem to work. + + Some special provision is made for planarconfig separate OJPEG files. These seem + to consistently contain header info, a SOS marker, a plane, SOS marker, plane, SOS, + and plane. This may or may not be a valid JPEG configuration, we don't know and don't + care. We want LibTiff to be able to access the planes individually, without huge + buffering inside LibJpeg, anyway. So we compose headers to feed to LibJpeg, in this + case, that allow us to pass a single plane such that LibJpeg sees a valid + single-channel JPEG stream. Locating subsequent SOS markers, and thus subsequent + planes, is done inside OJPEGReadSecondarySos. + + The benefit of the scheme is... that it works, basically. We know of no other that + does. It works without checking software tag, or otherwise going about things in an + OJPEG flavor specific manner. Instead, it is a single scheme, that covers the cases + with and without JpegInterchangeFormat, with and without striles, with part of + the header in JpegInterchangeFormat and remainder in first strile, etc. It is forgiving + and robust, may likely work with OJPEG flavors we've not seen yet, and makes most out + of the data. + + Another nice side-effect is that a complete JPEG single valid stream is build if + planarconfig is not separate (vast majority). We may one day use that to build + converters to JPEG, and/or to new-style JPEG compression inside TIFF. + + A dissadvantage is the lack of random access to the individual striles. This is the + reason for much of the complicated restart-and-position stuff inside OJPEGPreDecode. + Applications would do well accessing all striles in order, as this will result in + a single sequential scan of the input stream, and no restarting of LibJpeg decoding + session. +*/ + + +#include "tiffiop.h" +#ifdef OJPEG_SUPPORT + +/* Configuration defines here are: + * JPEG_ENCAP_EXTERNAL: The normal way to call libjpeg, uses longjump. In some environments, + * like eg LibTiffDelphi, this is not possible. For this reason, the actual calls to + * libjpeg, with longjump stuff, are encapsulated in dedicated functions. When + * JPEG_ENCAP_EXTERNAL is defined, these encapsulating functions are declared external + * to this unit, and can be defined elsewhere to use stuff other then longjump. + * The default mode, without JPEG_ENCAP_EXTERNAL, implements the call encapsulators + * here, internally, with normal longjump. + * SETJMP, LONGJMP, JMP_BUF: On some machines/environments a longjump equivalent is + * conviniently available, but still it may be worthwhile to use _setjmp or sigsetjmp + * in place of plain setjmp. These macros will make it easier. It is useless + * to fiddle with these if you define JPEG_ENCAP_EXTERNAL. + * OJPEG_BUFFER: Define the size of the desired buffer here. Should be small enough so as to guarantee + * instant processing, optimal streaming and optimal use of processor cache, but also big + * enough so as to not result in significant call overhead. It should be at least a few + * bytes to accomodate some structures (this is verified in asserts), but it would not be + * sensible to make it this small anyway, and it should be at most 64K since it is indexed + * with uint16. We recommend 2K. + * EGYPTIANWALK: You could also define EGYPTIANWALK here, but it is not used anywhere and has + * absolutely no effect. That is why most people insist the EGYPTIANWALK is a bit silly. + */ + +/* #define LIBJPEG_ENCAP_EXTERNAL */ +#define SETJMP(jbuf) setjmp(jbuf) +#define LONGJMP(jbuf,code) longjmp(jbuf,code) +#define JMP_BUF jmp_buf +#define OJPEG_BUFFER 2048 +/* define EGYPTIANWALK */ + +#define JPEG_MARKER_SOF0 0xC0 +#define JPEG_MARKER_SOF1 0xC1 +#define JPEG_MARKER_SOF3 0xC3 +#define JPEG_MARKER_DHT 0xC4 +#define JPEG_MARKER_RST0 0XD0 +#define JPEG_MARKER_SOI 0xD8 +#define JPEG_MARKER_EOI 0xD9 +#define JPEG_MARKER_SOS 0xDA +#define JPEG_MARKER_DQT 0xDB +#define JPEG_MARKER_DRI 0xDD +#define JPEG_MARKER_APP0 0xE0 +#define JPEG_MARKER_COM 0xFE + +#define FIELD_OJPEG_JPEGINTERCHANGEFORMAT (FIELD_CODEC+0) +#define FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH (FIELD_CODEC+1) +#define FIELD_OJPEG_JPEGQTABLES (FIELD_CODEC+2) +#define FIELD_OJPEG_JPEGDCTABLES (FIELD_CODEC+3) +#define FIELD_OJPEG_JPEGACTABLES (FIELD_CODEC+4) +#define FIELD_OJPEG_JPEGPROC (FIELD_CODEC+5) +#define FIELD_OJPEG_JPEGRESTARTINTERVAL (FIELD_CODEC+6) +#define FIELD_OJPEG_COUNT 7 + +static const TIFFFieldInfo ojpeg_field_info[] = { + {TIFFTAG_JPEGIFOFFSET,1,1,TIFF_LONG,FIELD_OJPEG_JPEGINTERCHANGEFORMAT,TRUE,FALSE,"JpegInterchangeFormat"}, + {TIFFTAG_JPEGIFBYTECOUNT,1,1,TIFF_LONG,FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH,TRUE,FALSE,"JpegInterchangeFormatLength"}, + {TIFFTAG_JPEGQTABLES,TIFF_VARIABLE,TIFF_VARIABLE,TIFF_LONG,FIELD_OJPEG_JPEGQTABLES,FALSE,TRUE,"JpegQTables"}, + {TIFFTAG_JPEGDCTABLES,TIFF_VARIABLE,TIFF_VARIABLE,TIFF_LONG,FIELD_OJPEG_JPEGDCTABLES,FALSE,TRUE,"JpegDcTables"}, + {TIFFTAG_JPEGACTABLES,TIFF_VARIABLE,TIFF_VARIABLE,TIFF_LONG,FIELD_OJPEG_JPEGACTABLES,FALSE,TRUE,"JpegAcTables"}, + {TIFFTAG_JPEGPROC,1,1,TIFF_SHORT,FIELD_OJPEG_JPEGPROC,FALSE,FALSE,"JpegProc"}, + {TIFFTAG_JPEGRESTARTINTERVAL,1,1,TIFF_SHORT,FIELD_OJPEG_JPEGRESTARTINTERVAL,FALSE,FALSE,"JpegRestartInterval"}, +}; + +#ifndef LIBJPEG_ENCAP_EXTERNAL +#include <setjmp.h> +#endif + +#include "jpeglib.h" +#include "jerror.h" + +typedef struct jpeg_error_mgr jpeg_error_mgr; +typedef struct jpeg_common_struct jpeg_common_struct; +typedef struct jpeg_decompress_struct jpeg_decompress_struct; +typedef struct jpeg_source_mgr jpeg_source_mgr; + +typedef enum { + osibsNotSetYet, + osibsJpegInterchangeFormat, + osibsStrile, + osibsEof +} OJPEGStateInBufferSource; + +typedef enum { + ososSoi, + ososQTable0,ososQTable1,ososQTable2,ososQTable3, + ososDcTable0,ososDcTable1,ososDcTable2,ososDcTable3, + ososAcTable0,ososAcTable1,ososAcTable2,ososAcTable3, + ososDri, + ososSof, + ososSos, + ososCompressed, + ososRst, + ososEoi +} OJPEGStateOutState; + +typedef struct { + TIFF* tif; + #ifndef LIBJPEG_ENCAP_EXTERNAL + JMP_BUF exit_jmpbuf; + #endif + TIFFVGetMethod vgetparent; + TIFFVSetMethod vsetparent; + toff_t file_size; + uint32 image_width; + uint32 image_length; + uint32 strile_width; + uint32 strile_length; + uint32 strile_length_total; + uint8 samples_per_pixel; + uint8 plane_sample_offset; + uint8 samples_per_pixel_per_plane; + toff_t jpeg_interchange_format; + toff_t jpeg_interchange_format_length; + uint8 jpeg_proc; + uint8 subsamplingcorrect; + uint8 subsamplingcorrect_done; + uint8 subsampling_tag; + uint8 subsampling_hor; + uint8 subsampling_ver; + uint8 subsampling_force_desubsampling_inside_decompression; + uint8 qtable_offset_count; + uint8 dctable_offset_count; + uint8 actable_offset_count; + toff_t qtable_offset[3]; + toff_t dctable_offset[3]; + toff_t actable_offset[3]; + uint8* qtable[4]; + uint8* dctable[4]; + uint8* actable[4]; + uint16 restart_interval; + uint8 restart_index; + uint8 sof_log; + uint8 sof_marker_id; + uint32 sof_x; + uint32 sof_y; + uint8 sof_c[3]; + uint8 sof_hv[3]; + uint8 sof_tq[3]; + uint8 sos_cs[3]; + uint8 sos_tda[3]; + struct { + uint8 log; + OJPEGStateInBufferSource in_buffer_source; + tstrile_t in_buffer_next_strile; + toff_t in_buffer_file_pos; + toff_t in_buffer_file_togo; + } sos_end[3]; + uint8 readheader_done; + uint8 writeheader_done; + tsample_t write_cursample; + tstrile_t write_curstrile; + uint8 libjpeg_session_active; + uint8 libjpeg_jpeg_query_style; + jpeg_error_mgr libjpeg_jpeg_error_mgr; + jpeg_decompress_struct libjpeg_jpeg_decompress_struct; + jpeg_source_mgr libjpeg_jpeg_source_mgr; + uint8 subsampling_convert_log; + uint32 subsampling_convert_ylinelen; + uint32 subsampling_convert_ylines; + uint32 subsampling_convert_clinelen; + uint32 subsampling_convert_clines; + uint32 subsampling_convert_ybuflen; + uint32 subsampling_convert_cbuflen; + uint32 subsampling_convert_ycbcrbuflen; + uint8* subsampling_convert_ycbcrbuf; + uint8* subsampling_convert_ybuf; + uint8* subsampling_convert_cbbuf; + uint8* subsampling_convert_crbuf; + uint32 subsampling_convert_ycbcrimagelen; + uint8** subsampling_convert_ycbcrimage; + uint32 subsampling_convert_clinelenout; + uint32 subsampling_convert_state; + uint32 bytes_per_line; /* if the codec outputs subsampled data, a 'line' in bytes_per_line */ + uint32 lines_per_strile; /* and lines_per_strile means subsampling_ver desubsampled rows */ + OJPEGStateInBufferSource in_buffer_source; + tstrile_t in_buffer_next_strile; + tstrile_t in_buffer_strile_count; + toff_t in_buffer_file_pos; + uint8 in_buffer_file_pos_log; + toff_t in_buffer_file_togo; + uint16 in_buffer_togo; + uint8* in_buffer_cur; + uint8 in_buffer[OJPEG_BUFFER]; + OJPEGStateOutState out_state; + uint8 out_buffer[OJPEG_BUFFER]; + uint8* skip_buffer; +} OJPEGState; + +static int OJPEGVGetField(TIFF* tif, ttag_t tag, va_list ap); +static int OJPEGVSetField(TIFF* tif, ttag_t tag, va_list ap); +static void OJPEGPrintDir(TIFF* tif, FILE* fd, long flags); + +static int OJPEGSetupDecode(TIFF* tif); +static int OJPEGPreDecode(TIFF* tif, tsample_t s); +static int OJPEGPreDecodeSkipRaw(TIFF* tif); +static int OJPEGPreDecodeSkipScanlines(TIFF* tif); +static int OJPEGDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s); +static int OJPEGDecodeRaw(TIFF* tif, tidata_t buf, tsize_t cc); +static int OJPEGDecodeScanlines(TIFF* tif, tidata_t buf, tsize_t cc); +static void OJPEGPostDecode(TIFF* tif, tidata_t buf, tsize_t cc); +static int OJPEGSetupEncode(TIFF* tif); +static int OJPEGPreEncode(TIFF* tif, tsample_t s); +static int OJPEGEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s); +static int OJPEGPostEncode(TIFF* tif); +static void OJPEGCleanup(TIFF* tif); + +static void OJPEGSubsamplingCorrect(TIFF* tif); +static int OJPEGReadHeaderInfo(TIFF* tif); +static int OJPEGReadSecondarySos(TIFF* tif, tsample_t s); +static int OJPEGWriteHeaderInfo(TIFF* tif); +static void OJPEGLibjpegSessionAbort(TIFF* tif); + +static int OJPEGReadHeaderInfoSec(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamDri(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamDqt(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamDht(TIFF* tif); +static int OJPEGReadHeaderInfoSecStreamSof(TIFF* tif, uint8 marker_id); +static int OJPEGReadHeaderInfoSecStreamSos(TIFF* tif); +static int OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif); +static int OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif); +static int OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif); + +static int OJPEGReadBufferFill(OJPEGState* sp); +static int OJPEGReadByte(OJPEGState* sp, uint8* byte); +static int OJPEGReadBytePeek(OJPEGState* sp, uint8* byte); +static void OJPEGReadByteAdvance(OJPEGState* sp); +static int OJPEGReadWord(OJPEGState* sp, uint16* word); +static int OJPEGReadBlock(OJPEGState* sp, uint16 len, void* mem); +static void OJPEGReadSkip(OJPEGState* sp, uint16 len); + +static int OJPEGWriteStream(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamSoi(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamQTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); +static void OJPEGWriteStreamDcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); +static void OJPEGWriteStreamAcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); +static void OJPEGWriteStreamDri(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamSof(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamSos(TIFF* tif, void** mem, uint32* len); +static int OJPEGWriteStreamCompressed(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamRst(TIFF* tif, void** mem, uint32* len); +static void OJPEGWriteStreamEoi(TIFF* tif, void** mem, uint32* len); + +#ifdef LIBJPEG_ENCAP_EXTERNAL +extern int jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); +extern int jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image); +extern int jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); +extern int jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines); +extern int jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines); +extern void jpeg_encap_unwind(TIFF* tif); +#else +static int jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* j); +static int jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image); +static int jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); +static int jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines); +static int jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines); +static void jpeg_encap_unwind(TIFF* tif); +#endif + +static void OJPEGLibjpegJpegErrorMgrOutputMessage(jpeg_common_struct* cinfo); +static void OJPEGLibjpegJpegErrorMgrErrorExit(jpeg_common_struct* cinfo); +static void OJPEGLibjpegJpegSourceMgrInitSource(jpeg_decompress_struct* cinfo); +static boolean OJPEGLibjpegJpegSourceMgrFillInputBuffer(jpeg_decompress_struct* cinfo); +static void OJPEGLibjpegJpegSourceMgrSkipInputData(jpeg_decompress_struct* cinfo, long num_bytes); +static boolean OJPEGLibjpegJpegSourceMgrResyncToRestart(jpeg_decompress_struct* cinfo, int desired); +static void OJPEGLibjpegJpegSourceMgrTermSource(jpeg_decompress_struct* cinfo); + +int +TIFFInitOJPEG(TIFF* tif, int scheme) +{ + static const char module[]="TIFFInitOJPEG"; + OJPEGState* sp; + + assert(scheme==COMPRESSION_OJPEG); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif,ojpeg_field_info,FIELD_OJPEG_COUNT)) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging Old JPEG codec-specific tags failed"); + return 0; + } + + /* state block */ + sp=_TIFFmalloc(sizeof(OJPEGState)); + if (sp==NULL) + { + TIFFErrorExt(tif->tif_clientdata,module,"No space for OJPEG state block"); + return(0); + } + _TIFFmemset(sp,0,sizeof(OJPEGState)); + sp->tif=tif; + sp->jpeg_proc=1; + sp->subsampling_hor=2; + sp->subsampling_ver=2; + TIFFSetField(tif,TIFFTAG_YCBCRSUBSAMPLING,2,2); + /* tif codec methods */ + tif->tif_setupdecode=OJPEGSetupDecode; + tif->tif_predecode=OJPEGPreDecode; + tif->tif_postdecode=OJPEGPostDecode; + tif->tif_decoderow=OJPEGDecode; + tif->tif_decodestrip=OJPEGDecode; + tif->tif_decodetile=OJPEGDecode; + tif->tif_setupencode=OJPEGSetupEncode; + tif->tif_preencode=OJPEGPreEncode; + tif->tif_postencode=OJPEGPostEncode; + tif->tif_encoderow=OJPEGEncode; + tif->tif_encodestrip=OJPEGEncode; + tif->tif_encodetile=OJPEGEncode; + tif->tif_cleanup=OJPEGCleanup; + tif->tif_data=(tidata_t)sp; + /* tif tag methods */ + sp->vgetparent=tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield=OJPEGVGetField; + sp->vsetparent=tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield=OJPEGVSetField; + tif->tif_tagmethods.printdir=OJPEGPrintDir; + /* Some OJPEG files don't have strip or tile offsets or bytecounts tags. + Some others do, but have totally meaningless or corrupt values + in these tags. In these cases, the JpegInterchangeFormat stream is + reliable. In any case, this decoder reads the compressed data itself, + from the most reliable locations, and we need to notify encapsulating + LibTiff not to read raw strips or tiles for us. */ + tif->tif_flags|=TIFF_NOREADRAW; + return(1); +} + +static int +OJPEGVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + switch(tag) + { + case TIFFTAG_JPEGIFOFFSET: + *va_arg(ap,uint32*)=(uint32)sp->jpeg_interchange_format; + break; + case TIFFTAG_JPEGIFBYTECOUNT: + *va_arg(ap,uint32*)=(uint32)sp->jpeg_interchange_format_length; + break; + case TIFFTAG_YCBCRSUBSAMPLING: + if (sp->subsamplingcorrect_done==0) + OJPEGSubsamplingCorrect(tif); + *va_arg(ap,uint16*)=(uint16)sp->subsampling_hor; + *va_arg(ap,uint16*)=(uint16)sp->subsampling_ver; + break; + case TIFFTAG_JPEGQTABLES: + *va_arg(ap,uint32*)=(uint32)sp->qtable_offset_count; + *va_arg(ap,void**)=(void*)sp->qtable_offset; + break; + case TIFFTAG_JPEGDCTABLES: + *va_arg(ap,uint32*)=(uint32)sp->dctable_offset_count; + *va_arg(ap,void**)=(void*)sp->dctable_offset; + break; + case TIFFTAG_JPEGACTABLES: + *va_arg(ap,uint32*)=(uint32)sp->actable_offset_count; + *va_arg(ap,void**)=(void*)sp->actable_offset; + break; + case TIFFTAG_JPEGPROC: + *va_arg(ap,uint16*)=(uint16)sp->jpeg_proc; + break; + case TIFFTAG_JPEGRESTARTINTERVAL: + *va_arg(ap,uint16*)=sp->restart_interval; + break; + default: + return (*sp->vgetparent)(tif,tag,ap); + } + return (1); +} + +static int +OJPEGVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + static const char module[]="OJPEGVSetField"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint32 ma; + uint32* mb; + uint32 n; + switch(tag) + { + case TIFFTAG_JPEGIFOFFSET: + sp->jpeg_interchange_format=(toff_t)va_arg(ap,uint32); + break; + case TIFFTAG_JPEGIFBYTECOUNT: + sp->jpeg_interchange_format_length=(toff_t)va_arg(ap,uint32); + break; + case TIFFTAG_YCBCRSUBSAMPLING: + sp->subsampling_tag=1; + sp->subsampling_hor=(uint8)va_arg(ap,int); + sp->subsampling_ver=(uint8)va_arg(ap,int); + tif->tif_dir.td_ycbcrsubsampling[0]=sp->subsampling_hor; + tif->tif_dir.td_ycbcrsubsampling[1]=sp->subsampling_ver; + break; + case TIFFTAG_JPEGQTABLES: + ma=va_arg(ap,uint32); + if (ma!=0) + { + if (ma>3) + { + TIFFErrorExt(tif->tif_clientdata,module,"JpegQTables tag has incorrect count"); + return(0); + } + sp->qtable_offset_count=(uint8)ma; + mb=va_arg(ap,uint32*); + for (n=0; n<ma; n++) + sp->qtable_offset[n]=(toff_t)mb[n]; + } + break; + case TIFFTAG_JPEGDCTABLES: + ma=va_arg(ap,uint32); + if (ma!=0) + { + if (ma>3) + { + TIFFErrorExt(tif->tif_clientdata,module,"JpegDcTables tag has incorrect count"); + return(0); + } + sp->dctable_offset_count=(uint8)ma; + mb=va_arg(ap,uint32*); + for (n=0; n<ma; n++) + sp->dctable_offset[n]=(toff_t)mb[n]; + } + break; + case TIFFTAG_JPEGACTABLES: + ma=va_arg(ap,uint32); + if (ma!=0) + { + if (ma>3) + { + TIFFErrorExt(tif->tif_clientdata,module,"JpegAcTables tag has incorrect count"); + return(0); + } + sp->actable_offset_count=(uint8)ma; + mb=va_arg(ap,uint32*); + for (n=0; n<ma; n++) + sp->actable_offset[n]=(toff_t)mb[n]; + } + break; + case TIFFTAG_JPEGPROC: + sp->jpeg_proc=(uint8)va_arg(ap,uint32); + break; + case TIFFTAG_JPEGRESTARTINTERVAL: + sp->restart_interval=(uint16)va_arg(ap,uint32); + break; + default: + return (*sp->vsetparent)(tif,tag,ap); + } + TIFFSetFieldBit(tif,_TIFFFieldWithTag(tif,tag)->field_bit); + tif->tif_flags|=TIFF_DIRTYDIRECT; + return(1); +} + +static void +OJPEGPrintDir(TIFF* tif, FILE* fd, long flags) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + (void)flags; + assert(sp!=NULL); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGINTERCHANGEFORMAT)) + fprintf(fd," JpegInterchangeFormat: %lu\n",(unsigned long)sp->jpeg_interchange_format); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH)) + fprintf(fd," JpegInterchangeFormatLength: %lu\n",(unsigned long)sp->jpeg_interchange_format_length); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGQTABLES)) + { + fprintf(fd," JpegQTables:"); + for (m=0; m<sp->qtable_offset_count; m++) + fprintf(fd," %lu",(unsigned long)sp->qtable_offset[m]); + fprintf(fd,"\n"); + } + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGDCTABLES)) + { + fprintf(fd," JpegDcTables:"); + for (m=0; m<sp->dctable_offset_count; m++) + fprintf(fd," %lu",(unsigned long)sp->dctable_offset[m]); + fprintf(fd,"\n"); + } + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGACTABLES)) + { + fprintf(fd," JpegAcTables:"); + for (m=0; m<sp->actable_offset_count; m++) + fprintf(fd," %lu",(unsigned long)sp->actable_offset[m]); + fprintf(fd,"\n"); + } + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGPROC)) + fprintf(fd," JpegProc: %u\n",(unsigned int)sp->jpeg_proc); + if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGRESTARTINTERVAL)) + fprintf(fd," JpegRestartInterval: %u\n",(unsigned int)sp->restart_interval); +} + +static int +OJPEGSetupDecode(TIFF* tif) +{ + static const char module[]="OJPEGSetupDecode"; + TIFFWarningExt(tif->tif_clientdata,module,"Depreciated and troublesome old-style JPEG compression mode, please convert to new-style JPEG compression and notify vendor of writing software"); + return(1); +} + +static int +OJPEGPreDecode(TIFF* tif, tsample_t s) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + tstrile_t m; + if (sp->subsamplingcorrect_done==0) + OJPEGSubsamplingCorrect(tif); + if (sp->readheader_done==0) + { + if (OJPEGReadHeaderInfo(tif)==0) + return(0); + } + if (sp->sos_end[s].log==0) + { + if (OJPEGReadSecondarySos(tif,s)==0) + return(0); + } + if isTiled(tif) + m=(tstrile_t)tif->tif_curtile; + else + m=(tstrile_t)tif->tif_curstrip; + if ((sp->writeheader_done!=0) && ((sp->write_cursample!=s) || (sp->write_curstrile>m))) + { + if (sp->libjpeg_session_active!=0) + OJPEGLibjpegSessionAbort(tif); + sp->writeheader_done=0; + } + if (sp->writeheader_done==0) + { + sp->plane_sample_offset=s; + sp->write_cursample=s; + sp->write_curstrile=s*tif->tif_dir.td_stripsperimage; + if ((sp->in_buffer_file_pos_log==0) || + (sp->in_buffer_file_pos-sp->in_buffer_togo!=sp->sos_end[s].in_buffer_file_pos)) + { + sp->in_buffer_source=sp->sos_end[s].in_buffer_source; + sp->in_buffer_next_strile=sp->sos_end[s].in_buffer_next_strile; + sp->in_buffer_file_pos=sp->sos_end[s].in_buffer_file_pos; + sp->in_buffer_file_pos_log=0; + sp->in_buffer_file_togo=sp->sos_end[s].in_buffer_file_togo; + sp->in_buffer_togo=0; + sp->in_buffer_cur=0; + } + if (OJPEGWriteHeaderInfo(tif)==0) + return(0); + } + while (sp->write_curstrile<m) + { + if (sp->libjpeg_jpeg_query_style==0) + { + if (OJPEGPreDecodeSkipRaw(tif)==0) + return(0); + } + else + { + if (OJPEGPreDecodeSkipScanlines(tif)==0) + return(0); + } + sp->write_curstrile++; + } + return(1); +} + +static int +OJPEGPreDecodeSkipRaw(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint32 m; + m=sp->lines_per_strile; + if (sp->subsampling_convert_state!=0) + { + if (sp->subsampling_convert_clines-sp->subsampling_convert_state>=m) + { + sp->subsampling_convert_state+=m; + if (sp->subsampling_convert_state==sp->subsampling_convert_clines) + sp->subsampling_convert_state=0; + return(1); + } + m-=sp->subsampling_convert_clines-sp->subsampling_convert_state; + sp->subsampling_convert_state=0; + } + while (m>=sp->subsampling_convert_clines) + { + if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) + return(0); + m-=sp->subsampling_convert_clines; + } + if (m>0) + { + if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) + return(0); + sp->subsampling_convert_state=m; + } + return(1); +} + +static int +OJPEGPreDecodeSkipScanlines(TIFF* tif) +{ + static const char module[]="OJPEGPreDecodeSkipScanlines"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint32 m; + if (sp->skip_buffer==NULL) + { + sp->skip_buffer=_TIFFmalloc(sp->bytes_per_line); + if (sp->skip_buffer==NULL) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + } + for (m=0; m<sp->lines_per_strile; m++) + { + if (jpeg_read_scanlines_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),&sp->skip_buffer,1)==0) + return(0); + } + return(1); +} + +static int +OJPEGDecode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + (void)s; + if (sp->libjpeg_jpeg_query_style==0) + { + if (OJPEGDecodeRaw(tif,buf,cc)==0) + return(0); + } + else + { + if (OJPEGDecodeScanlines(tif,buf,cc)==0) + return(0); + } + return(1); +} + +static int +OJPEGDecodeRaw(TIFF* tif, tidata_t buf, tsize_t cc) +{ + static const char module[]="OJPEGDecodeRaw"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8* m; + uint32 n; + uint8* oy; + uint8* ocb; + uint8* ocr; + uint8* p; + uint32 q; + uint8* r; + uint8 sx,sy; + if (cc%sp->bytes_per_line!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Fractional scanline not read"); + return(0); + } + assert(cc>0); + m=buf; + n=cc; + do + { + if (sp->subsampling_convert_state==0) + { + if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) + return(0); + } + oy=sp->subsampling_convert_ybuf+sp->subsampling_convert_state*sp->subsampling_ver*sp->subsampling_convert_ylinelen; + ocb=sp->subsampling_convert_cbbuf+sp->subsampling_convert_state*sp->subsampling_convert_clinelen; + ocr=sp->subsampling_convert_crbuf+sp->subsampling_convert_state*sp->subsampling_convert_clinelen; + p=m; + for (q=0; q<sp->subsampling_convert_clinelenout; q++) + { + r=oy; + for (sy=0; sy<sp->subsampling_ver; sy++) + { + for (sx=0; sx<sp->subsampling_hor; sx++) + *p++=*r++; + r+=sp->subsampling_convert_ylinelen-sp->subsampling_hor; + } + oy+=sp->subsampling_hor; + *p++=*ocb++; + *p++=*ocr++; + } + sp->subsampling_convert_state++; + if (sp->subsampling_convert_state==sp->subsampling_convert_clines) + sp->subsampling_convert_state=0; + m+=sp->bytes_per_line; + n-=sp->bytes_per_line; + } while(n>0); + return(1); +} + +static int +OJPEGDecodeScanlines(TIFF* tif, tidata_t buf, tsize_t cc) +{ + static const char module[]="OJPEGDecodeScanlines"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8* m; + uint32 n; + if (cc%sp->bytes_per_line!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Fractional scanline not read"); + return(0); + } + assert(cc>0); + m=buf; + n=cc; + do + { + if (jpeg_read_scanlines_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),&m,1)==0) + return(0); + m+=sp->bytes_per_line; + n-=sp->bytes_per_line; + } while(n>0); + return(1); +} + +static void +OJPEGPostDecode(TIFF* tif, tidata_t buf, tsize_t cc) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + (void)buf; + (void)cc; + sp->write_curstrile++; + if (sp->write_curstrile%tif->tif_dir.td_stripsperimage==0) + { + assert(sp->libjpeg_session_active!=0); + OJPEGLibjpegSessionAbort(tif); + sp->writeheader_done=0; + } +} + +static int +OJPEGSetupEncode(TIFF* tif) +{ + static const char module[]="OJPEGSetupEncode"; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} + +static int +OJPEGPreEncode(TIFF* tif, tsample_t s) +{ + static const char module[]="OJPEGPreEncode"; + (void)s; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} + +static int +OJPEGEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + static const char module[]="OJPEGEncode"; + (void)buf; + (void)cc; + (void)s; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} + +static int +OJPEGPostEncode(TIFF* tif) +{ + static const char module[]="OJPEGPostEncode"; + TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); + return(0); +} + +static void +OJPEGCleanup(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp!=0) + { + tif->tif_tagmethods.vgetfield=sp->vgetparent; + tif->tif_tagmethods.vsetfield=sp->vsetparent; + if (sp->qtable[0]!=0) + _TIFFfree(sp->qtable[0]); + if (sp->qtable[1]!=0) + _TIFFfree(sp->qtable[1]); + if (sp->qtable[2]!=0) + _TIFFfree(sp->qtable[2]); + if (sp->qtable[3]!=0) + _TIFFfree(sp->qtable[3]); + if (sp->dctable[0]!=0) + _TIFFfree(sp->dctable[0]); + if (sp->dctable[1]!=0) + _TIFFfree(sp->dctable[1]); + if (sp->dctable[2]!=0) + _TIFFfree(sp->dctable[2]); + if (sp->dctable[3]!=0) + _TIFFfree(sp->dctable[3]); + if (sp->actable[0]!=0) + _TIFFfree(sp->actable[0]); + if (sp->actable[1]!=0) + _TIFFfree(sp->actable[1]); + if (sp->actable[2]!=0) + _TIFFfree(sp->actable[2]); + if (sp->actable[3]!=0) + _TIFFfree(sp->actable[3]); + if (sp->libjpeg_session_active!=0) + OJPEGLibjpegSessionAbort(tif); + if (sp->subsampling_convert_ycbcrbuf!=0) + _TIFFfree(sp->subsampling_convert_ycbcrbuf); + if (sp->subsampling_convert_ycbcrimage!=0) + _TIFFfree(sp->subsampling_convert_ycbcrimage); + if (sp->skip_buffer!=0) + _TIFFfree(sp->skip_buffer); + _TIFFfree(sp); + tif->tif_data=NULL; + _TIFFSetDefaultCompressionState(tif); + } +} + +static void +OJPEGSubsamplingCorrect(TIFF* tif) +{ + static const char module[]="OJPEGSubsamplingCorrect"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 mh; + uint8 mv; + assert(sp->subsamplingcorrect_done==0); + if ((tif->tif_dir.td_samplesperpixel!=3) || ((tif->tif_dir.td_photometric!=PHOTOMETRIC_YCBCR) && + (tif->tif_dir.td_photometric!=PHOTOMETRIC_ITULAB))) + { + if (sp->subsampling_tag!=0) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag not appropriate for this Photometric and/or SamplesPerPixel"); + sp->subsampling_hor=1; + sp->subsampling_ver=1; + sp->subsampling_force_desubsampling_inside_decompression=0; + } + else + { + sp->subsamplingcorrect_done=1; + mh=sp->subsampling_hor; + mv=sp->subsampling_ver; + sp->subsamplingcorrect=1; + OJPEGReadHeaderInfoSec(tif); + if (sp->subsampling_force_desubsampling_inside_decompression!=0) + { + sp->subsampling_hor=1; + sp->subsampling_ver=1; + } + sp->subsamplingcorrect=0; + if (((sp->subsampling_hor!=mh) || (sp->subsampling_ver!=mv)) && (sp->subsampling_force_desubsampling_inside_decompression==0)) + { + if (sp->subsampling_tag==0) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag is not set, yet subsampling inside JPEG data [%d,%d] does not match default values [2,2]; assuming subsampling inside JPEG data is correct",sp->subsampling_hor,sp->subsampling_ver); + else + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling inside JPEG data [%d,%d] does not match subsampling tag values [%d,%d]; assuming subsampling inside JPEG data is correct",sp->subsampling_hor,sp->subsampling_ver,mh,mv); + } + if (sp->subsampling_force_desubsampling_inside_decompression!=0) + { + if (sp->subsampling_tag==0) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag is not set, yet subsampling inside JPEG data does not match default values [2,2] (nor any other values allowed in TIFF); assuming subsampling inside JPEG data is correct and desubsampling inside JPEG decompression"); + else + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling inside JPEG data does not match subsampling tag values [%d,%d] (nor any other values allowed in TIFF); assuming subsampling inside JPEG data is correct and desubsampling inside JPEG decompression",mh,mv); + } + if (sp->subsampling_force_desubsampling_inside_decompression==0) + { + if (sp->subsampling_hor<sp->subsampling_ver) + TIFFWarningExt(tif->tif_clientdata,module,"Subsampling values [%d,%d] are not allowed in TIFF",sp->subsampling_hor,sp->subsampling_ver); + } + } + sp->subsamplingcorrect_done=1; +} + +static int +OJPEGReadHeaderInfo(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfo"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(sp->readheader_done==0); + sp->image_width=tif->tif_dir.td_imagewidth; + sp->image_length=tif->tif_dir.td_imagelength; + if isTiled(tif) + { + sp->strile_width=tif->tif_dir.td_tilewidth; + sp->strile_length=tif->tif_dir.td_tilelength; + sp->strile_length_total=((sp->image_length+sp->strile_length-1)/sp->strile_length)*sp->strile_length; + } + else + { + sp->strile_width=sp->image_width; + sp->strile_length=tif->tif_dir.td_rowsperstrip; + sp->strile_length_total=sp->image_length; + } + sp->samples_per_pixel=tif->tif_dir.td_samplesperpixel; + if (sp->samples_per_pixel==1) + { + sp->plane_sample_offset=0; + sp->samples_per_pixel_per_plane=sp->samples_per_pixel; + sp->subsampling_hor=1; + sp->subsampling_ver=1; + } + else + { + if (sp->samples_per_pixel!=3) + { + TIFFErrorExt(tif->tif_clientdata,module,"SamplesPerPixel %d not supported for this compression scheme",sp->samples_per_pixel); + return(0); + } + sp->plane_sample_offset=0; + if (tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG) + sp->samples_per_pixel_per_plane=3; + else + sp->samples_per_pixel_per_plane=1; + } + if (sp->strile_length<sp->image_length) + { + if (sp->strile_length%(sp->subsampling_ver*8)!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Incompatible vertical subsampling and image strip/tile length"); + return(0); + } + sp->restart_interval=((sp->strile_width+sp->subsampling_hor*8-1)/(sp->subsampling_hor*8))*(sp->strile_length/(sp->subsampling_ver*8)); + } + if (OJPEGReadHeaderInfoSec(tif)==0) + return(0); + sp->sos_end[0].log=1; + sp->sos_end[0].in_buffer_source=sp->in_buffer_source; + sp->sos_end[0].in_buffer_next_strile=sp->in_buffer_next_strile; + sp->sos_end[0].in_buffer_file_pos=sp->in_buffer_file_pos-sp->in_buffer_togo; + sp->sos_end[0].in_buffer_file_togo=sp->in_buffer_file_togo+sp->in_buffer_togo; + sp->readheader_done=1; + return(1); +} + +static int +OJPEGReadSecondarySos(TIFF* tif, tsample_t s) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + assert(s>0); + assert(s<3); + assert(sp->sos_end[0].log!=0); + assert(sp->sos_end[s].log==0); + sp->plane_sample_offset=s-1; + while(sp->sos_end[sp->plane_sample_offset].log==0) + sp->plane_sample_offset--; + sp->in_buffer_source=sp->sos_end[sp->plane_sample_offset].in_buffer_source; + sp->in_buffer_next_strile=sp->sos_end[sp->plane_sample_offset].in_buffer_next_strile; + sp->in_buffer_file_pos=sp->sos_end[sp->plane_sample_offset].in_buffer_file_pos; + sp->in_buffer_file_pos_log=0; + sp->in_buffer_file_togo=sp->sos_end[sp->plane_sample_offset].in_buffer_file_togo; + sp->in_buffer_togo=0; + sp->in_buffer_cur=0; + while(sp->plane_sample_offset<s) + { + do + { + if (OJPEGReadByte(sp,&m)==0) + return(0); + if (m==255) + { + do + { + if (OJPEGReadByte(sp,&m)==0) + return(0); + if (m!=255) + break; + } while(1); + if (m==JPEG_MARKER_SOS) + break; + } + } while(1); + sp->plane_sample_offset++; + if (OJPEGReadHeaderInfoSecStreamSos(tif)==0) + return(0); + sp->sos_end[sp->plane_sample_offset].log=1; + sp->sos_end[sp->plane_sample_offset].in_buffer_source=sp->in_buffer_source; + sp->sos_end[sp->plane_sample_offset].in_buffer_next_strile=sp->in_buffer_next_strile; + sp->sos_end[sp->plane_sample_offset].in_buffer_file_pos=sp->in_buffer_file_pos-sp->in_buffer_togo; + sp->sos_end[sp->plane_sample_offset].in_buffer_file_togo=sp->in_buffer_file_togo+sp->in_buffer_togo; + } + return(1); +} + +static int +OJPEGWriteHeaderInfo(TIFF* tif) +{ + static const char module[]="OJPEGWriteHeaderInfo"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8** m; + uint32 n; + assert(sp->libjpeg_session_active==0); + sp->out_state=ososSoi; + sp->restart_index=0; + jpeg_std_error(&(sp->libjpeg_jpeg_error_mgr)); + sp->libjpeg_jpeg_error_mgr.output_message=OJPEGLibjpegJpegErrorMgrOutputMessage; + sp->libjpeg_jpeg_error_mgr.error_exit=OJPEGLibjpegJpegErrorMgrErrorExit; + sp->libjpeg_jpeg_decompress_struct.err=&(sp->libjpeg_jpeg_error_mgr); + sp->libjpeg_jpeg_decompress_struct.client_data=(void*)tif; + if (jpeg_create_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0) + return(0); + sp->libjpeg_session_active=1; + sp->libjpeg_jpeg_source_mgr.bytes_in_buffer=0; + sp->libjpeg_jpeg_source_mgr.init_source=OJPEGLibjpegJpegSourceMgrInitSource; + sp->libjpeg_jpeg_source_mgr.fill_input_buffer=OJPEGLibjpegJpegSourceMgrFillInputBuffer; + sp->libjpeg_jpeg_source_mgr.skip_input_data=OJPEGLibjpegJpegSourceMgrSkipInputData; + sp->libjpeg_jpeg_source_mgr.resync_to_restart=OJPEGLibjpegJpegSourceMgrResyncToRestart; + sp->libjpeg_jpeg_source_mgr.term_source=OJPEGLibjpegJpegSourceMgrTermSource; + sp->libjpeg_jpeg_decompress_struct.src=&(sp->libjpeg_jpeg_source_mgr); + if (jpeg_read_header_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),1)==0) + return(0); + if ((sp->subsampling_force_desubsampling_inside_decompression==0) && (sp->samples_per_pixel_per_plane>1)) + { + sp->libjpeg_jpeg_decompress_struct.raw_data_out=1; +#if JPEG_LIB_VERSION >= 70 + sp->libjpeg_jpeg_decompress_struct.do_fancy_upsampling=FALSE; +#endif + sp->libjpeg_jpeg_query_style=0; + if (sp->subsampling_convert_log==0) + { + assert(sp->subsampling_convert_ycbcrbuf==0); + assert(sp->subsampling_convert_ycbcrimage==0); + sp->subsampling_convert_ylinelen=((sp->strile_width+sp->subsampling_hor*8-1)/(sp->subsampling_hor*8)*sp->subsampling_hor*8); + sp->subsampling_convert_ylines=sp->subsampling_ver*8; + sp->subsampling_convert_clinelen=sp->subsampling_convert_ylinelen/sp->subsampling_hor; + sp->subsampling_convert_clines=8; + sp->subsampling_convert_ybuflen=sp->subsampling_convert_ylinelen*sp->subsampling_convert_ylines; + sp->subsampling_convert_cbuflen=sp->subsampling_convert_clinelen*sp->subsampling_convert_clines; + sp->subsampling_convert_ycbcrbuflen=sp->subsampling_convert_ybuflen+2*sp->subsampling_convert_cbuflen; + sp->subsampling_convert_ycbcrbuf=_TIFFmalloc(sp->subsampling_convert_ycbcrbuflen); + if (sp->subsampling_convert_ycbcrbuf==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + sp->subsampling_convert_ybuf=sp->subsampling_convert_ycbcrbuf; + sp->subsampling_convert_cbbuf=sp->subsampling_convert_ybuf+sp->subsampling_convert_ybuflen; + sp->subsampling_convert_crbuf=sp->subsampling_convert_cbbuf+sp->subsampling_convert_cbuflen; + sp->subsampling_convert_ycbcrimagelen=3+sp->subsampling_convert_ylines+2*sp->subsampling_convert_clines; + sp->subsampling_convert_ycbcrimage=_TIFFmalloc(sp->subsampling_convert_ycbcrimagelen*sizeof(uint8*)); + if (sp->subsampling_convert_ycbcrimage==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + m=sp->subsampling_convert_ycbcrimage; + *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3); + *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3+sp->subsampling_convert_ylines); + *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3+sp->subsampling_convert_ylines+sp->subsampling_convert_clines); + for (n=0; n<sp->subsampling_convert_ylines; n++) + *m++=sp->subsampling_convert_ybuf+n*sp->subsampling_convert_ylinelen; + for (n=0; n<sp->subsampling_convert_clines; n++) + *m++=sp->subsampling_convert_cbbuf+n*sp->subsampling_convert_clinelen; + for (n=0; n<sp->subsampling_convert_clines; n++) + *m++=sp->subsampling_convert_crbuf+n*sp->subsampling_convert_clinelen; + sp->subsampling_convert_clinelenout=((sp->strile_width+sp->subsampling_hor-1)/sp->subsampling_hor); + sp->subsampling_convert_state=0; + sp->bytes_per_line=sp->subsampling_convert_clinelenout*(sp->subsampling_ver*sp->subsampling_hor+2); + sp->lines_per_strile=((sp->strile_length+sp->subsampling_ver-1)/sp->subsampling_ver); + sp->subsampling_convert_log=1; + } + } + else + { + sp->libjpeg_jpeg_decompress_struct.jpeg_color_space=JCS_UNKNOWN; + sp->libjpeg_jpeg_decompress_struct.out_color_space=JCS_UNKNOWN; + sp->libjpeg_jpeg_query_style=1; + sp->bytes_per_line=sp->samples_per_pixel_per_plane*sp->strile_width; + sp->lines_per_strile=sp->strile_length; + } + if (jpeg_start_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0) + return(0); + sp->writeheader_done=1; + return(1); +} + +static void +OJPEGLibjpegSessionAbort(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(sp->libjpeg_session_active!=0); + jpeg_destroy((jpeg_common_struct*)(&(sp->libjpeg_jpeg_decompress_struct))); + sp->libjpeg_session_active=0; +} + +static int +OJPEGReadHeaderInfoSec(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSec"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint16 n; + uint8 o; + if (sp->file_size==0) + sp->file_size=TIFFGetFileSize(tif); + if (sp->jpeg_interchange_format!=0) + { + if (sp->jpeg_interchange_format>=sp->file_size) + { + sp->jpeg_interchange_format=0; + sp->jpeg_interchange_format_length=0; + } + else + { + if ((sp->jpeg_interchange_format_length==0) || (sp->jpeg_interchange_format+sp->jpeg_interchange_format_length>sp->file_size)) + sp->jpeg_interchange_format_length=sp->file_size-sp->jpeg_interchange_format; + } + } + sp->in_buffer_source=osibsNotSetYet; + sp->in_buffer_next_strile=0; + sp->in_buffer_strile_count=tif->tif_dir.td_nstrips; + sp->in_buffer_file_togo=0; + sp->in_buffer_togo=0; + do + { + if (OJPEGReadBytePeek(sp,&m)==0) + return(0); + if (m!=255) + break; + OJPEGReadByteAdvance(sp); + do + { + if (OJPEGReadByte(sp,&m)==0) + return(0); + } while(m==255); + switch(m) + { + case JPEG_MARKER_SOI: + /* this type of marker has no data, and should be skipped */ + break; + case JPEG_MARKER_COM: + case JPEG_MARKER_APP0: + case JPEG_MARKER_APP0+1: + case JPEG_MARKER_APP0+2: + case JPEG_MARKER_APP0+3: + case JPEG_MARKER_APP0+4: + case JPEG_MARKER_APP0+5: + case JPEG_MARKER_APP0+6: + case JPEG_MARKER_APP0+7: + case JPEG_MARKER_APP0+8: + case JPEG_MARKER_APP0+9: + case JPEG_MARKER_APP0+10: + case JPEG_MARKER_APP0+11: + case JPEG_MARKER_APP0+12: + case JPEG_MARKER_APP0+13: + case JPEG_MARKER_APP0+14: + case JPEG_MARKER_APP0+15: + /* this type of marker has data, but it has no use to us (and no place here) and should be skipped */ + if (OJPEGReadWord(sp,&n)==0) + return(0); + if (n<2) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JPEG data"); + return(0); + } + if (n>2) + OJPEGReadSkip(sp,n-2); + break; + case JPEG_MARKER_DRI: + if (OJPEGReadHeaderInfoSecStreamDri(tif)==0) + return(0); + break; + case JPEG_MARKER_DQT: + if (OJPEGReadHeaderInfoSecStreamDqt(tif)==0) + return(0); + break; + case JPEG_MARKER_DHT: + if (OJPEGReadHeaderInfoSecStreamDht(tif)==0) + return(0); + break; + case JPEG_MARKER_SOF0: + case JPEG_MARKER_SOF1: + case JPEG_MARKER_SOF3: + if (OJPEGReadHeaderInfoSecStreamSof(tif,m)==0) + return(0); + if (sp->subsamplingcorrect!=0) + return(1); + break; + case JPEG_MARKER_SOS: + if (sp->subsamplingcorrect!=0) + return(1); + assert(sp->plane_sample_offset==0); + if (OJPEGReadHeaderInfoSecStreamSos(tif)==0) + return(0); + break; + default: + TIFFErrorExt(tif->tif_clientdata,module,"Unknown marker type %d in JPEG data",m); + return(0); + } + } while(m!=JPEG_MARKER_SOS); + if (sp->subsamplingcorrect) + return(1); + if (sp->sof_log==0) + { + if (OJPEGReadHeaderInfoSecTablesQTable(tif)==0) + return(0); + sp->sof_marker_id=JPEG_MARKER_SOF0; + for (o=0; o<sp->samples_per_pixel; o++) + sp->sof_c[o]=o; + sp->sof_hv[0]=((sp->subsampling_hor<<4)|sp->subsampling_ver); + for (o=1; o<sp->samples_per_pixel; o++) + sp->sof_hv[o]=17; + sp->sof_x=sp->strile_width; + sp->sof_y=sp->strile_length_total; + sp->sof_log=1; + if (OJPEGReadHeaderInfoSecTablesDcTable(tif)==0) + return(0); + if (OJPEGReadHeaderInfoSecTablesAcTable(tif)==0) + return(0); + for (o=1; o<sp->samples_per_pixel; o++) + sp->sos_cs[o]=o; + } + return(1); +} + +static int +OJPEGReadHeaderInfoSecStreamDri(TIFF* tif) +{ + /* this could easilly cause trouble in some cases... but no such cases have occured sofar */ + static const char module[]="OJPEGReadHeaderInfoSecStreamDri"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m!=4) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DRI marker in JPEG data"); + return(0); + } + if (OJPEGReadWord(sp,&m)==0) + return(0); + sp->restart_interval=m; + return(1); +} + +static int +OJPEGReadHeaderInfoSecStreamDqt(TIFF* tif) +{ + /* this is a table marker, and it is to be saved as a whole for exact pushing on the jpeg stream later on */ + static const char module[]="OJPEGReadHeaderInfoSecStreamDqt"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint32 na; + uint8* nb; + uint8 o; + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m<=2) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); + return(0); + } + if (sp->subsamplingcorrect!=0) + OJPEGReadSkip(sp,m-2); + else + { + m-=2; + do + { + if (m<65) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); + return(0); + } + na=sizeof(uint32)+69; + nb=_TIFFmalloc(na); + if (nb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)nb=na; + nb[sizeof(uint32)]=255; + nb[sizeof(uint32)+1]=JPEG_MARKER_DQT; + nb[sizeof(uint32)+2]=0; + nb[sizeof(uint32)+3]=67; + if (OJPEGReadBlock(sp,65,&nb[sizeof(uint32)+4])==0) + return(0); + o=nb[sizeof(uint32)+4]&15; + if (3<o) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); + return(0); + } + if (sp->qtable[o]!=0) + _TIFFfree(sp->qtable[o]); + sp->qtable[o]=nb; + m-=65; + } while(m>0); + } + return(1); +} + +static int +OJPEGReadHeaderInfoSecStreamDht(TIFF* tif) +{ + /* this is a table marker, and it is to be saved as a whole for exact pushing on the jpeg stream later on */ + /* TODO: the following assumes there is only one table in this marker... but i'm not quite sure that assumption is guaranteed correct */ + static const char module[]="OJPEGReadHeaderInfoSecStreamDht"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint32 na; + uint8* nb; + uint8 o; + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m<=2) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + if (sp->subsamplingcorrect!=0) + { + OJPEGReadSkip(sp,m-2); + } + else + { + na=sizeof(uint32)+2+m; + nb=_TIFFmalloc(na); + if (nb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)nb=na; + nb[sizeof(uint32)]=255; + nb[sizeof(uint32)+1]=JPEG_MARKER_DHT; + nb[sizeof(uint32)+2]=(m>>8); + nb[sizeof(uint32)+3]=(m&255); + if (OJPEGReadBlock(sp,m-2,&nb[sizeof(uint32)+4])==0) + return(0); + o=nb[sizeof(uint32)+4]; + if ((o&240)==0) + { + if (3<o) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + if (sp->dctable[o]!=0) + _TIFFfree(sp->dctable[o]); + sp->dctable[o]=nb; + } + else + { + if ((o&240)!=16) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + o&=15; + if (3<o) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); + return(0); + } + if (sp->actable[o]!=0) + _TIFFfree(sp->actable[o]); + sp->actable[o]=nb; + } + } + return(1); +} + +static int +OJPEGReadHeaderInfoSecStreamSof(TIFF* tif, uint8 marker_id) +{ + /* this marker needs to be checked, and part of its data needs to be saved for regeneration later on */ + static const char module[]="OJPEGReadHeaderInfoSecStreamSof"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint16 n; + uint8 o; + uint16 p; + uint16 q; + if (sp->sof_log!=0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JPEG data"); + return(0); + } + if (sp->subsamplingcorrect==0) + sp->sof_marker_id=marker_id; + /* Lf: data length */ + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m<11) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); + return(0); + } + m-=8; + if (m%3!=0) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); + return(0); + } + n=m/3; + if (sp->subsamplingcorrect==0) + { + if (n!=sp->samples_per_pixel) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected number of samples"); + return(0); + } + } + /* P: Sample precision */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (o!=8) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected number of bits per sample"); + return(0); + } + /* Y: Number of lines, X: Number of samples per line */ + if (sp->subsamplingcorrect) + OJPEGReadSkip(sp,4); + else + { + /* TODO: probably best to also add check on allowed upper bound, especially x, may cause buffer overflow otherwise i think */ + /* Y: Number of lines */ + if (OJPEGReadWord(sp,&p)==0) + return(0); + if ((p<sp->image_length) && (p<sp->strile_length_total)) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected height"); + return(0); + } + sp->sof_y=p; + /* X: Number of samples per line */ + if (OJPEGReadWord(sp,&p)==0) + return(0); + if ((p<sp->image_width) && (p<sp->strile_width)) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected width"); + return(0); + } + sp->sof_x=p; + } + /* Nf: Number of image components in frame */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (o!=n) + { + if (sp->subsamplingcorrect==0) + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); + return(0); + } + /* per component stuff */ + /* TODO: double-check that flow implies that n cannot be as big as to make us overflow sof_c, sof_hv and sof_tq arrays */ + for (q=0; q<n; q++) + { + /* C: Component identifier */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (sp->subsamplingcorrect==0) + sp->sof_c[q]=o; + /* H: Horizontal sampling factor, and V: Vertical sampling factor */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (sp->subsamplingcorrect!=0) + { + if (q==0) + { + sp->subsampling_hor=(o>>4); + sp->subsampling_ver=(o&15); + if (((sp->subsampling_hor!=1) && (sp->subsampling_hor!=2) && (sp->subsampling_hor!=4)) || + ((sp->subsampling_ver!=1) && (sp->subsampling_ver!=2) && (sp->subsampling_ver!=4))) + sp->subsampling_force_desubsampling_inside_decompression=1; + } + else + { + if (o!=17) + sp->subsampling_force_desubsampling_inside_decompression=1; + } + } + else + { + sp->sof_hv[q]=o; + if (sp->subsampling_force_desubsampling_inside_decompression==0) + { + if (q==0) + { + if (o!=((sp->subsampling_hor<<4)|sp->subsampling_ver)) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected subsampling values"); + return(0); + } + } + else + { + if (o!=17) + { + TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected subsampling values"); + return(0); + } + } + } + } + /* Tq: Quantization table destination selector */ + if (OJPEGReadByte(sp,&o)==0) + return(0); + if (sp->subsamplingcorrect==0) + sp->sof_tq[q]=o; + } + if (sp->subsamplingcorrect==0) + sp->sof_log=1; + return(1); +} + +static int +OJPEGReadHeaderInfoSecStreamSos(TIFF* tif) +{ + /* this marker needs to be checked, and part of its data needs to be saved for regeneration later on */ + static const char module[]="OJPEGReadHeaderInfoSecStreamSos"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint16 m; + uint8 n; + uint8 o; + assert(sp->subsamplingcorrect==0); + if (sp->sof_log==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); + return(0); + } + /* Ls */ + if (OJPEGReadWord(sp,&m)==0) + return(0); + if (m!=6+sp->samples_per_pixel_per_plane*2) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); + return(0); + } + /* Ns */ + if (OJPEGReadByte(sp,&n)==0) + return(0); + if (n!=sp->samples_per_pixel_per_plane) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); + return(0); + } + /* Cs, Td, and Ta */ + for (o=0; o<sp->samples_per_pixel_per_plane; o++) + { + /* Cs */ + if (OJPEGReadByte(sp,&n)==0) + return(0); + sp->sos_cs[sp->plane_sample_offset+o]=n; + /* Td and Ta */ + if (OJPEGReadByte(sp,&n)==0) + return(0); + sp->sos_tda[sp->plane_sample_offset+o]=n; + } + /* skip Ss, Se, Ah, en Al -> no check, as per Tom Lane recommendation, as per LibJpeg source */ + OJPEGReadSkip(sp,3); + return(1); +} + +static int +OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSecTablesQTable"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint8 n; + uint32 oa; + uint8* ob; + uint32 p; + if (sp->qtable_offset[0]==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); + return(0); + } + sp->in_buffer_file_pos_log=0; + for (m=0; m<sp->samples_per_pixel; m++) + { + if ((sp->qtable_offset[m]!=0) && ((m==0) || (sp->qtable_offset[m]!=sp->qtable_offset[m-1]))) + { + for (n=0; n<m-1; n++) + { + if (sp->qtable_offset[m]==sp->qtable_offset[n]) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegQTables tag value"); + return(0); + } + } + oa=sizeof(uint32)+69; + ob=_TIFFmalloc(oa); + if (ob==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)ob=oa; + ob[sizeof(uint32)]=255; + ob[sizeof(uint32)+1]=JPEG_MARKER_DQT; + ob[sizeof(uint32)+2]=0; + ob[sizeof(uint32)+3]=67; + ob[sizeof(uint32)+4]=m; + TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); + p=TIFFReadFile(tif,&ob[sizeof(uint32)+5],64); + if (p!=64) + return(0); + sp->qtable[m]=ob; + sp->sof_tq[m]=m; + } + else + sp->sof_tq[m]=sp->sof_tq[m-1]; + } + return(1); +} + +static int +OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSecTablesDcTable"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint8 n; + uint8 o[16]; + uint32 p; + uint32 q; + uint32 ra; + uint8* rb; + if (sp->dctable_offset[0]==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); + return(0); + } + sp->in_buffer_file_pos_log=0; + for (m=0; m<sp->samples_per_pixel; m++) + { + if ((sp->dctable_offset[m]!=0) && ((m==0) || (sp->dctable_offset[m]!=sp->dctable_offset[m-1]))) + { + for (n=0; n<m-1; n++) + { + if (sp->dctable_offset[m]==sp->dctable_offset[n]) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegDcTables tag value"); + return(0); + } + } + TIFFSeekFile(tif,sp->dctable_offset[m],SEEK_SET); + p=TIFFReadFile(tif,o,16); + if (p!=16) + return(0); + q=0; + for (n=0; n<16; n++) + q+=o[n]; + ra=sizeof(uint32)+21+q; + rb=_TIFFmalloc(ra); + if (rb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)rb=ra; + rb[sizeof(uint32)]=255; + rb[sizeof(uint32)+1]=JPEG_MARKER_DHT; + rb[sizeof(uint32)+2]=((19+q)>>8); + rb[sizeof(uint32)+3]=((19+q)&255); + rb[sizeof(uint32)+4]=m; + for (n=0; n<16; n++) + rb[sizeof(uint32)+5+n]=o[n]; + p=TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); + if (p!=q) + return(0); + sp->dctable[m]=rb; + sp->sos_tda[m]=(m<<4); + } + else + sp->sos_tda[m]=sp->sos_tda[m-1]; + } + return(1); +} + +static int +OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif) +{ + static const char module[]="OJPEGReadHeaderInfoSecTablesAcTable"; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + uint8 n; + uint8 o[16]; + uint32 p; + uint32 q; + uint32 ra; + uint8* rb; + if (sp->actable_offset[0]==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); + return(0); + } + sp->in_buffer_file_pos_log=0; + for (m=0; m<sp->samples_per_pixel; m++) + { + if ((sp->actable_offset[m]!=0) && ((m==0) || (sp->actable_offset[m]!=sp->actable_offset[m-1]))) + { + for (n=0; n<m-1; n++) + { + if (sp->actable_offset[m]==sp->actable_offset[n]) + { + TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegAcTables tag value"); + return(0); + } + } + TIFFSeekFile(tif,sp->actable_offset[m],SEEK_SET); + p=TIFFReadFile(tif,o,16); + if (p!=16) + return(0); + q=0; + for (n=0; n<16; n++) + q+=o[n]; + ra=sizeof(uint32)+21+q; + rb=_TIFFmalloc(ra); + if (rb==0) + { + TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); + return(0); + } + *(uint32*)rb=ra; + rb[sizeof(uint32)]=255; + rb[sizeof(uint32)+1]=JPEG_MARKER_DHT; + rb[sizeof(uint32)+2]=((19+q)>>8); + rb[sizeof(uint32)+3]=((19+q)&255); + rb[sizeof(uint32)+4]=(16|m); + for (n=0; n<16; n++) + rb[sizeof(uint32)+5+n]=o[n]; + p=TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); + if (p!=q) + return(0); + sp->actable[m]=rb; + sp->sos_tda[m]=(sp->sos_tda[m]|m); + } + else + sp->sos_tda[m]=(sp->sos_tda[m]|(sp->sos_tda[m-1]&15)); + } + return(1); +} + +static int +OJPEGReadBufferFill(OJPEGState* sp) +{ + uint16 m; + tsize_t n; + /* TODO: double-check: when subsamplingcorrect is set, no call to TIFFErrorExt or TIFFWarningExt should be made + * in any other case, seek or read errors should be passed through */ + do + { + if (sp->in_buffer_file_togo!=0) + { + if (sp->in_buffer_file_pos_log==0) + { + TIFFSeekFile(sp->tif,sp->in_buffer_file_pos,SEEK_SET); + sp->in_buffer_file_pos_log=1; + } + m=OJPEG_BUFFER; + if (m>sp->in_buffer_file_togo) + m=(uint16)sp->in_buffer_file_togo; + n=TIFFReadFile(sp->tif,sp->in_buffer,(tsize_t)m); + if (n==0) + return(0); + assert(n>0); + assert(n<=OJPEG_BUFFER); + assert(n<65536); + assert((uint16)n<=sp->in_buffer_file_togo); + m=(uint16)n; + sp->in_buffer_togo=m; + sp->in_buffer_cur=sp->in_buffer; + sp->in_buffer_file_togo-=m; + sp->in_buffer_file_pos+=m; + break; + } + sp->in_buffer_file_pos_log=0; + switch(sp->in_buffer_source) + { + case osibsNotSetYet: + if (sp->jpeg_interchange_format!=0) + { + sp->in_buffer_file_pos=sp->jpeg_interchange_format; + sp->in_buffer_file_togo=sp->jpeg_interchange_format_length; + } + sp->in_buffer_source=osibsJpegInterchangeFormat; + break; + case osibsJpegInterchangeFormat: + sp->in_buffer_source=osibsStrile; + case osibsStrile: + if (sp->in_buffer_next_strile==sp->in_buffer_strile_count) + sp->in_buffer_source=osibsEof; + else + { + if (sp->tif->tif_dir.td_stripoffset == 0) { + TIFFErrorExt(sp->tif->tif_clientdata,sp->tif->tif_name,"Strip offsets are missing"); + return(0); + } + sp->in_buffer_file_pos=sp->tif->tif_dir.td_stripoffset[sp->in_buffer_next_strile]; + if (sp->in_buffer_file_pos!=0) + { + if (sp->in_buffer_file_pos>=sp->file_size) + sp->in_buffer_file_pos=0; + else + { + sp->in_buffer_file_togo=sp->tif->tif_dir.td_stripbytecount[sp->in_buffer_next_strile]; + if (sp->in_buffer_file_togo==0) + sp->in_buffer_file_pos=0; + else if (sp->in_buffer_file_pos+sp->in_buffer_file_togo>sp->file_size) + sp->in_buffer_file_togo=sp->file_size-sp->in_buffer_file_pos; + } + } + sp->in_buffer_next_strile++; + } + break; + default: + return(0); + } + } while (1); + return(1); +} + +static int +OJPEGReadByte(OJPEGState* sp, uint8* byte) +{ + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + *byte=*(sp->in_buffer_cur); + sp->in_buffer_cur++; + sp->in_buffer_togo--; + return(1); +} + +static int +OJPEGReadBytePeek(OJPEGState* sp, uint8* byte) +{ + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + *byte=*(sp->in_buffer_cur); + return(1); +} + +static void +OJPEGReadByteAdvance(OJPEGState* sp) +{ + assert(sp->in_buffer_togo>0); + sp->in_buffer_cur++; + sp->in_buffer_togo--; +} + +static int +OJPEGReadWord(OJPEGState* sp, uint16* word) +{ + uint8 m; + if (OJPEGReadByte(sp,&m)==0) + return(0); + *word=(m<<8); + if (OJPEGReadByte(sp,&m)==0) + return(0); + *word|=m; + return(1); +} + +static int +OJPEGReadBlock(OJPEGState* sp, uint16 len, void* mem) +{ + uint16 mlen; + uint8* mmem; + uint16 n; + assert(len>0); + mlen=len; + mmem=mem; + do + { + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + n=mlen; + if (n>sp->in_buffer_togo) + n=sp->in_buffer_togo; + _TIFFmemcpy(mmem,sp->in_buffer_cur,n); + sp->in_buffer_cur+=n; + sp->in_buffer_togo-=n; + mlen-=n; + mmem+=n; + } while(mlen>0); + return(1); +} + +static void +OJPEGReadSkip(OJPEGState* sp, uint16 len) +{ + uint16 m; + uint16 n; + m=len; + n=m; + if (n>sp->in_buffer_togo) + n=sp->in_buffer_togo; + sp->in_buffer_cur+=n; + sp->in_buffer_togo-=n; + m-=n; + if (m>0) + { + assert(sp->in_buffer_togo==0); + n=m; + if (n>sp->in_buffer_file_togo) + n=sp->in_buffer_file_togo; + sp->in_buffer_file_pos+=n; + sp->in_buffer_file_togo-=n; + sp->in_buffer_file_pos_log=0; + /* we don't skip past jpeginterchangeformat/strile block... + * if that is asked from us, we're dealing with totally bazurk + * data anyway, and we've not seen this happening on any + * testfile, so we might as well likely cause some other + * meaningless error to be passed at some later time + */ + } +} + +static int +OJPEGWriteStream(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + *len=0; + do + { + assert(sp->out_state<=ososEoi); + switch(sp->out_state) + { + case ososSoi: + OJPEGWriteStreamSoi(tif,mem,len); + break; + case ososQTable0: + OJPEGWriteStreamQTable(tif,0,mem,len); + break; + case ososQTable1: + OJPEGWriteStreamQTable(tif,1,mem,len); + break; + case ososQTable2: + OJPEGWriteStreamQTable(tif,2,mem,len); + break; + case ososQTable3: + OJPEGWriteStreamQTable(tif,3,mem,len); + break; + case ososDcTable0: + OJPEGWriteStreamDcTable(tif,0,mem,len); + break; + case ososDcTable1: + OJPEGWriteStreamDcTable(tif,1,mem,len); + break; + case ososDcTable2: + OJPEGWriteStreamDcTable(tif,2,mem,len); + break; + case ososDcTable3: + OJPEGWriteStreamDcTable(tif,3,mem,len); + break; + case ososAcTable0: + OJPEGWriteStreamAcTable(tif,0,mem,len); + break; + case ososAcTable1: + OJPEGWriteStreamAcTable(tif,1,mem,len); + break; + case ososAcTable2: + OJPEGWriteStreamAcTable(tif,2,mem,len); + break; + case ososAcTable3: + OJPEGWriteStreamAcTable(tif,3,mem,len); + break; + case ososDri: + OJPEGWriteStreamDri(tif,mem,len); + break; + case ososSof: + OJPEGWriteStreamSof(tif,mem,len); + break; + case ososSos: + OJPEGWriteStreamSos(tif,mem,len); + break; + case ososCompressed: + if (OJPEGWriteStreamCompressed(tif,mem,len)==0) + return(0); + break; + case ososRst: + OJPEGWriteStreamRst(tif,mem,len); + break; + case ososEoi: + OJPEGWriteStreamEoi(tif,mem,len); + break; + } + } while (*len==0); + return(1); +} + +static void +OJPEGWriteStreamSoi(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_SOI; + *len=2; + *mem=(void*)sp->out_buffer; + sp->out_state++; +} + +static void +OJPEGWriteStreamQTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->qtable[table_index]!=0) + { + *mem=(void*)(sp->qtable[table_index]+sizeof(uint32)); + *len=*((uint32*)sp->qtable[table_index])-sizeof(uint32); + } + sp->out_state++; +} + +static void +OJPEGWriteStreamDcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->dctable[table_index]!=0) + { + *mem=(void*)(sp->dctable[table_index]+sizeof(uint32)); + *len=*((uint32*)sp->dctable[table_index])-sizeof(uint32); + } + sp->out_state++; +} + +static void +OJPEGWriteStreamAcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->actable[table_index]!=0) + { + *mem=(void*)(sp->actable[table_index]+sizeof(uint32)); + *len=*((uint32*)sp->actable[table_index])-sizeof(uint32); + } + sp->out_state++; +} + +static void +OJPEGWriteStreamDri(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=6); + if (sp->restart_interval!=0) + { + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_DRI; + sp->out_buffer[2]=0; + sp->out_buffer[3]=4; + sp->out_buffer[4]=(sp->restart_interval>>8); + sp->out_buffer[5]=(sp->restart_interval&255); + *len=6; + *mem=(void*)sp->out_buffer; + } + sp->out_state++; +} + +static void +OJPEGWriteStreamSof(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + assert(OJPEG_BUFFER>=2+8+sp->samples_per_pixel_per_plane*3); + assert(255>=8+sp->samples_per_pixel_per_plane*3); + sp->out_buffer[0]=255; + sp->out_buffer[1]=sp->sof_marker_id; + /* Lf */ + sp->out_buffer[2]=0; + sp->out_buffer[3]=8+sp->samples_per_pixel_per_plane*3; + /* P */ + sp->out_buffer[4]=8; + /* Y */ + sp->out_buffer[5]=(sp->sof_y>>8); + sp->out_buffer[6]=(sp->sof_y&255); + /* X */ + sp->out_buffer[7]=(sp->sof_x>>8); + sp->out_buffer[8]=(sp->sof_x&255); + /* Nf */ + sp->out_buffer[9]=sp->samples_per_pixel_per_plane; + for (m=0; m<sp->samples_per_pixel_per_plane; m++) + { + /* C */ + sp->out_buffer[10+m*3]=sp->sof_c[sp->plane_sample_offset+m]; + /* H and V */ + sp->out_buffer[10+m*3+1]=sp->sof_hv[sp->plane_sample_offset+m]; + /* Tq */ + sp->out_buffer[10+m*3+2]=sp->sof_tq[sp->plane_sample_offset+m]; + } + *len=10+sp->samples_per_pixel_per_plane*3; + *mem=(void*)sp->out_buffer; + sp->out_state++; +} + +static void +OJPEGWriteStreamSos(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + uint8 m; + assert(OJPEG_BUFFER>=2+6+sp->samples_per_pixel_per_plane*2); + assert(255>=6+sp->samples_per_pixel_per_plane*2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_SOS; + /* Ls */ + sp->out_buffer[2]=0; + sp->out_buffer[3]=6+sp->samples_per_pixel_per_plane*2; + /* Ns */ + sp->out_buffer[4]=sp->samples_per_pixel_per_plane; + for (m=0; m<sp->samples_per_pixel_per_plane; m++) + { + /* Cs */ + sp->out_buffer[5+m*2]=sp->sos_cs[sp->plane_sample_offset+m]; + /* Td and Ta */ + sp->out_buffer[5+m*2+1]=sp->sos_tda[sp->plane_sample_offset+m]; + } + /* Ss */ + sp->out_buffer[5+sp->samples_per_pixel_per_plane*2]=0; + /* Se */ + sp->out_buffer[5+sp->samples_per_pixel_per_plane*2+1]=63; + /* Ah and Al */ + sp->out_buffer[5+sp->samples_per_pixel_per_plane*2+2]=0; + *len=8+sp->samples_per_pixel_per_plane*2; + *mem=(void*)sp->out_buffer; + sp->out_state++; +} + +static int +OJPEGWriteStreamCompressed(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + if (sp->in_buffer_togo==0) + { + if (OJPEGReadBufferFill(sp)==0) + return(0); + assert(sp->in_buffer_togo>0); + } + *len=sp->in_buffer_togo; + *mem=(void*)sp->in_buffer_cur; + sp->in_buffer_togo=0; + if (sp->in_buffer_file_togo==0) + { + switch(sp->in_buffer_source) + { + case osibsStrile: + if (sp->in_buffer_next_strile<sp->in_buffer_strile_count) + sp->out_state=ososRst; + else + sp->out_state=ososEoi; + break; + case osibsEof: + sp->out_state=ososEoi; + break; + default: + break; + } + } + return(1); +} + +static void +OJPEGWriteStreamRst(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_RST0+sp->restart_index; + sp->restart_index++; + if (sp->restart_index==8) + sp->restart_index=0; + *len=2; + *mem=(void*)sp->out_buffer; + sp->out_state=ososCompressed; +} + +static void +OJPEGWriteStreamEoi(TIFF* tif, void** mem, uint32* len) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + assert(OJPEG_BUFFER>=2); + sp->out_buffer[0]=255; + sp->out_buffer[1]=JPEG_MARKER_EOI; + *len=2; + *mem=(void*)sp->out_buffer; +} + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_create_decompress(cinfo),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_header(cinfo,require_image),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_start_decompress(cinfo),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_scanlines(cinfo,scanlines,max_lines),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static int +jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines) +{ + return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_raw_data(cinfo,data,max_lines),1)); +} +#endif + +#ifndef LIBJPEG_ENCAP_EXTERNAL +static void +jpeg_encap_unwind(TIFF* tif) +{ + OJPEGState* sp=(OJPEGState*)tif->tif_data; + LONGJMP(sp->exit_jmpbuf,1); +} +#endif + +static void +OJPEGLibjpegJpegErrorMgrOutputMessage(jpeg_common_struct* cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + (*cinfo->err->format_message)(cinfo,buffer); + TIFFWarningExt(((TIFF*)(cinfo->client_data))->tif_clientdata,"LibJpeg", "%s", buffer); +} + +static void +OJPEGLibjpegJpegErrorMgrErrorExit(jpeg_common_struct* cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + (*cinfo->err->format_message)(cinfo,buffer); + TIFFErrorExt(((TIFF*)(cinfo->client_data))->tif_clientdata,"LibJpeg", "%s", buffer); + jpeg_encap_unwind((TIFF*)(cinfo->client_data)); +} + +static void +OJPEGLibjpegJpegSourceMgrInitSource(jpeg_decompress_struct* cinfo) +{ + (void)cinfo; +} + +static boolean +OJPEGLibjpegJpegSourceMgrFillInputBuffer(jpeg_decompress_struct* cinfo) +{ + TIFF* tif=(TIFF*)cinfo->client_data; + OJPEGState* sp=(OJPEGState*)tif->tif_data; + void* mem=0; + uint32 len=0; + if (OJPEGWriteStream(tif,&mem,&len)==0) + { + TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Premature end of JPEG data"); + jpeg_encap_unwind(tif); + } + sp->libjpeg_jpeg_source_mgr.bytes_in_buffer=len; + sp->libjpeg_jpeg_source_mgr.next_input_byte=mem; + return(1); +} + +static void +OJPEGLibjpegJpegSourceMgrSkipInputData(jpeg_decompress_struct* cinfo, long num_bytes) +{ + TIFF* tif=(TIFF*)cinfo->client_data; + (void)num_bytes; + TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Unexpected error"); + jpeg_encap_unwind(tif); +} + +static boolean +OJPEGLibjpegJpegSourceMgrResyncToRestart(jpeg_decompress_struct* cinfo, int desired) +{ + TIFF* tif=(TIFF*)cinfo->client_data; + (void)desired; + TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Unexpected error"); + jpeg_encap_unwind(tif); + return(0); +} + +static void +OJPEGLibjpegJpegSourceMgrTermSource(jpeg_decompress_struct* cinfo) +{ + (void)cinfo; +} + +#endif + + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_open.c b/tiff/libtiff/tif_open.c new file mode 100644 index 0000000..3b3b2ce --- /dev/null +++ b/tiff/libtiff/tif_open.c @@ -0,0 +1,695 @@ +/* $Id: tif_open.c,v 1.33.2.1 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + */ +#include "tiffiop.h" + +static const long typemask[13] = { + (long)0L, /* TIFF_NOTYPE */ + (long)0x000000ffL, /* TIFF_BYTE */ + (long)0xffffffffL, /* TIFF_ASCII */ + (long)0x0000ffffL, /* TIFF_SHORT */ + (long)0xffffffffL, /* TIFF_LONG */ + (long)0xffffffffL, /* TIFF_RATIONAL */ + (long)0x000000ffL, /* TIFF_SBYTE */ + (long)0x000000ffL, /* TIFF_UNDEFINED */ + (long)0x0000ffffL, /* TIFF_SSHORT */ + (long)0xffffffffL, /* TIFF_SLONG */ + (long)0xffffffffL, /* TIFF_SRATIONAL */ + (long)0xffffffffL, /* TIFF_FLOAT */ + (long)0xffffffffL, /* TIFF_DOUBLE */ +}; +static const int bigTypeshift[13] = { + 0, /* TIFF_NOTYPE */ + 24, /* TIFF_BYTE */ + 0, /* TIFF_ASCII */ + 16, /* TIFF_SHORT */ + 0, /* TIFF_LONG */ + 0, /* TIFF_RATIONAL */ + 24, /* TIFF_SBYTE */ + 24, /* TIFF_UNDEFINED */ + 16, /* TIFF_SSHORT */ + 0, /* TIFF_SLONG */ + 0, /* TIFF_SRATIONAL */ + 0, /* TIFF_FLOAT */ + 0, /* TIFF_DOUBLE */ +}; +static const int litTypeshift[13] = { + 0, /* TIFF_NOTYPE */ + 0, /* TIFF_BYTE */ + 0, /* TIFF_ASCII */ + 0, /* TIFF_SHORT */ + 0, /* TIFF_LONG */ + 0, /* TIFF_RATIONAL */ + 0, /* TIFF_SBYTE */ + 0, /* TIFF_UNDEFINED */ + 0, /* TIFF_SSHORT */ + 0, /* TIFF_SLONG */ + 0, /* TIFF_SRATIONAL */ + 0, /* TIFF_FLOAT */ + 0, /* TIFF_DOUBLE */ +}; + +/* + * Dummy functions to fill the omitted client procedures. + */ +static int +_tiffDummyMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + (void) fd; (void) pbase; (void) psize; + return (0); +} + +static void +_tiffDummyUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; (void) base; (void) size; +} + +/* + * Initialize the shift & mask tables, and the + * byte swapping state according to the file + * contents and the machine architecture. + */ +static void +TIFFInitOrder(TIFF* tif, int magic) +{ + tif->tif_typemask = typemask; + if (magic == TIFF_BIGENDIAN) { + tif->tif_typeshift = bigTypeshift; +#ifndef WORDS_BIGENDIAN + tif->tif_flags |= TIFF_SWAB; +#endif + } else { + tif->tif_typeshift = litTypeshift; +#ifdef WORDS_BIGENDIAN + tif->tif_flags |= TIFF_SWAB; +#endif + } +} + +int +_TIFFgetMode(const char* mode, const char* module) +{ + int m = -1; + + switch (mode[0]) { + case 'r': + m = O_RDONLY; + if (mode[1] == '+') + m = O_RDWR; + break; + case 'w': + case 'a': + m = O_RDWR|O_CREAT; + if (mode[0] == 'w') + m |= O_TRUNC; + break; + default: + TIFFErrorExt(0, module, "\"%s\": Bad mode", mode); + break; + } + return (m); +} + +TIFF* +TIFFClientOpen( + const char* name, const char* mode, + thandle_t clientdata, + TIFFReadWriteProc readproc, + TIFFReadWriteProc writeproc, + TIFFSeekProc seekproc, + TIFFCloseProc closeproc, + TIFFSizeProc sizeproc, + TIFFMapFileProc mapproc, + TIFFUnmapFileProc unmapproc +) +{ + static const char module[] = "TIFFClientOpen"; + TIFF *tif; + int m; + const char* cp; + + m = _TIFFgetMode(mode, module); + if (m == -1) + goto bad2; + tif = (TIFF *)_TIFFmalloc(sizeof (TIFF) + strlen(name) + 1); + if (tif == NULL) { + TIFFErrorExt(clientdata, module, "%s: Out of memory (TIFF structure)", name); + goto bad2; + } + _TIFFmemset(tif, 0, sizeof (*tif)); + tif->tif_name = (char *)tif + sizeof (TIFF); + strcpy(tif->tif_name, name); + tif->tif_mode = m &~ (O_CREAT|O_TRUNC); + tif->tif_curdir = (tdir_t) -1; /* non-existent directory */ + tif->tif_curoff = 0; + tif->tif_curstrip = (tstrip_t) -1; /* invalid strip */ + tif->tif_row = (uint32) -1; /* read/write pre-increment */ + tif->tif_clientdata = clientdata; + if (!readproc || !writeproc || !seekproc || !closeproc || !sizeproc) { + TIFFErrorExt(clientdata, module, + "One of the client procedures is NULL pointer."); + goto bad2; + } + tif->tif_readproc = readproc; + tif->tif_writeproc = writeproc; + tif->tif_seekproc = seekproc; + tif->tif_closeproc = closeproc; + tif->tif_sizeproc = sizeproc; + if (mapproc) + tif->tif_mapproc = mapproc; + else + tif->tif_mapproc = _tiffDummyMapProc; + if (unmapproc) + tif->tif_unmapproc = unmapproc; + else + tif->tif_unmapproc = _tiffDummyUnmapProc; + _TIFFSetDefaultCompressionState(tif); /* setup default state */ + /* + * Default is to return data MSB2LSB and enable the + * use of memory-mapped files and strip chopping when + * a file is opened read-only. + */ + tif->tif_flags = FILLORDER_MSB2LSB; + if (m == O_RDONLY ) + tif->tif_flags |= TIFF_MAPPED; + +#ifdef STRIPCHOP_DEFAULT + if (m == O_RDONLY || m == O_RDWR) + tif->tif_flags |= STRIPCHOP_DEFAULT; +#endif + + /* + * Process library-specific flags in the open mode string. + * The following flags may be used to control intrinsic library + * behaviour that may or may not be desirable (usually for + * compatibility with some application that claims to support + * TIFF but only supports some braindead idea of what the + * vendor thinks TIFF is): + * + * 'l' use little-endian byte order for creating a file + * 'b' use big-endian byte order for creating a file + * 'L' read/write information using LSB2MSB bit order + * 'B' read/write information using MSB2LSB bit order + * 'H' read/write information using host bit order + * 'M' enable use of memory-mapped files when supported + * 'm' disable use of memory-mapped files + * 'C' enable strip chopping support when reading + * 'c' disable strip chopping support + * 'h' read TIFF header only, do not load the first IFD + * + * The use of the 'l' and 'b' flags is strongly discouraged. + * These flags are provided solely because numerous vendors, + * typically on the PC, do not correctly support TIFF; they + * only support the Intel little-endian byte order. This + * support is not configured by default because it supports + * the violation of the TIFF spec that says that readers *MUST* + * support both byte orders. It is strongly recommended that + * you not use this feature except to deal with busted apps + * that write invalid TIFF. And even in those cases you should + * bang on the vendors to fix their software. + * + * The 'L', 'B', and 'H' flags are intended for applications + * that can optimize operations on data by using a particular + * bit order. By default the library returns data in MSB2LSB + * bit order for compatibiltiy with older versions of this + * library. Returning data in the bit order of the native cpu + * makes the most sense but also requires applications to check + * the value of the FillOrder tag; something they probably do + * not do right now. + * + * The 'M' and 'm' flags are provided because some virtual memory + * systems exhibit poor behaviour when large images are mapped. + * These options permit clients to control the use of memory-mapped + * files on a per-file basis. + * + * The 'C' and 'c' flags are provided because the library support + * for chopping up large strips into multiple smaller strips is not + * application-transparent and as such can cause problems. The 'c' + * option permits applications that only want to look at the tags, + * for example, to get the unadulterated TIFF tag information. + */ + for (cp = mode; *cp; cp++) + switch (*cp) { + case 'b': +#ifndef WORDS_BIGENDIAN + if (m&O_CREAT) + tif->tif_flags |= TIFF_SWAB; +#endif + break; + case 'l': +#ifdef WORDS_BIGENDIAN + if ((m&O_CREAT)) + tif->tif_flags |= TIFF_SWAB; +#endif + break; + case 'B': + tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | + FILLORDER_MSB2LSB; + break; + case 'L': + tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | + FILLORDER_LSB2MSB; + break; + case 'H': + tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | + HOST_FILLORDER; + break; + case 'M': + if (m == O_RDONLY) + tif->tif_flags |= TIFF_MAPPED; + break; + case 'm': + if (m == O_RDONLY) + tif->tif_flags &= ~TIFF_MAPPED; + break; + case 'C': + if (m == O_RDONLY) + tif->tif_flags |= TIFF_STRIPCHOP; + break; + case 'c': + if (m == O_RDONLY) + tif->tif_flags &= ~TIFF_STRIPCHOP; + break; + case 'h': + tif->tif_flags |= TIFF_HEADERONLY; + break; + } + /* + * Read in TIFF header. + */ + if (tif->tif_mode & O_TRUNC || + !ReadOK(tif, &tif->tif_header, sizeof (TIFFHeader))) { + if (tif->tif_mode == O_RDONLY) { + TIFFErrorExt(tif->tif_clientdata, name, + "Cannot read TIFF header"); + goto bad; + } + /* + * Setup header and write. + */ +#ifdef WORDS_BIGENDIAN + tif->tif_header.tiff_magic = tif->tif_flags & TIFF_SWAB + ? TIFF_LITTLEENDIAN : TIFF_BIGENDIAN; +#else + tif->tif_header.tiff_magic = tif->tif_flags & TIFF_SWAB + ? TIFF_BIGENDIAN : TIFF_LITTLEENDIAN; +#endif + tif->tif_header.tiff_version = TIFF_VERSION; + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabShort(&tif->tif_header.tiff_version); + tif->tif_header.tiff_diroff = 0; /* filled in later */ + + + /* + * The doc for "fopen" for some STD_C_LIBs says that if you + * open a file for modify ("+"), then you must fseek (or + * fflush?) between any freads and fwrites. This is not + * necessary on most systems, but has been shown to be needed + * on Solaris. + */ + TIFFSeekFile( tif, 0, SEEK_SET ); + + if (!WriteOK(tif, &tif->tif_header, sizeof (TIFFHeader))) { + TIFFErrorExt(tif->tif_clientdata, name, + "Error writing TIFF header"); + goto bad; + } + /* + * Setup the byte order handling. + */ + TIFFInitOrder(tif, tif->tif_header.tiff_magic); + /* + * Setup default directory. + */ + if (!TIFFDefaultDirectory(tif)) + goto bad; + tif->tif_diroff = 0; + tif->tif_dirlist = NULL; + tif->tif_dirlistsize = 0; + tif->tif_dirnumber = 0; + return (tif); + } + /* + * Setup the byte order handling. + */ + if (tif->tif_header.tiff_magic != TIFF_BIGENDIAN && + tif->tif_header.tiff_magic != TIFF_LITTLEENDIAN +#if MDI_SUPPORT + && +#if HOST_BIGENDIAN + tif->tif_header.tiff_magic != MDI_BIGENDIAN +#else + tif->tif_header.tiff_magic != MDI_LITTLEENDIAN +#endif + ) { + TIFFErrorExt(tif->tif_clientdata, name, + "Not a TIFF or MDI file, bad magic number %d (0x%x)", +#else + ) { + TIFFErrorExt(tif->tif_clientdata, name, + "Not a TIFF file, bad magic number %d (0x%x)", +#endif + tif->tif_header.tiff_magic, + tif->tif_header.tiff_magic); + goto bad; + } + TIFFInitOrder(tif, tif->tif_header.tiff_magic); + /* + * Swap header if required. + */ + if (tif->tif_flags & TIFF_SWAB) { + TIFFSwabShort(&tif->tif_header.tiff_version); + TIFFSwabLong(&tif->tif_header.tiff_diroff); + } + /* + * Now check version (if needed, it's been byte-swapped). + * Note that this isn't actually a version number, it's a + * magic number that doesn't change (stupid). + */ + if (tif->tif_header.tiff_version == TIFF_BIGTIFF_VERSION) { + TIFFErrorExt(tif->tif_clientdata, name, + "This is a BigTIFF file. This format not supported\n" + "by this version of libtiff." ); + goto bad; + } + if (tif->tif_header.tiff_version != TIFF_VERSION) { + TIFFErrorExt(tif->tif_clientdata, name, + "Not a TIFF file, bad version number %d (0x%x)", + tif->tif_header.tiff_version, + tif->tif_header.tiff_version); + goto bad; + } + tif->tif_flags |= TIFF_MYBUFFER; + tif->tif_rawcp = tif->tif_rawdata = 0; + tif->tif_rawdatasize = 0; + + /* + * Sometimes we do not want to read the first directory (for example, + * it may be broken) and want to proceed to other directories. I this + * case we use the TIFF_HEADERONLY flag to open file and return + * immediately after reading TIFF header. + */ + if (tif->tif_flags & TIFF_HEADERONLY) + return (tif); + + /* + * Setup initial directory. + */ + switch (mode[0]) { + case 'r': + tif->tif_nextdiroff = tif->tif_header.tiff_diroff; + /* + * Try to use a memory-mapped file if the client + * has not explicitly suppressed usage with the + * 'm' flag in the open mode (see above). + */ + if ((tif->tif_flags & TIFF_MAPPED) && + !TIFFMapFileContents(tif, (tdata_t*) &tif->tif_base, &tif->tif_size)) + tif->tif_flags &= ~TIFF_MAPPED; + if (TIFFReadDirectory(tif)) { + tif->tif_rawcc = -1; + tif->tif_flags |= TIFF_BUFFERSETUP; + return (tif); + } + break; + case 'a': + /* + * New directories are automatically append + * to the end of the directory chain when they + * are written out (see TIFFWriteDirectory). + */ + if (!TIFFDefaultDirectory(tif)) + goto bad; + return (tif); + } +bad: + tif->tif_mode = O_RDONLY; /* XXX avoid flush */ + TIFFCleanup(tif); +bad2: + return ((TIFF*)0); +} + +/* + * Query functions to access private data. + */ + +/* + * Return open file's name. + */ +const char * +TIFFFileName(TIFF* tif) +{ + return (tif->tif_name); +} + +/* + * Set the file name. + */ +const char * +TIFFSetFileName(TIFF* tif, const char *name) +{ + const char* old_name = tif->tif_name; + tif->tif_name = (char *)name; + return (old_name); +} + +/* + * Return open file's I/O descriptor. + */ +int +TIFFFileno(TIFF* tif) +{ + return (tif->tif_fd); +} + +/* + * Set open file's I/O descriptor, and return previous value. + */ +int +TIFFSetFileno(TIFF* tif, int fd) +{ + int old_fd = tif->tif_fd; + tif->tif_fd = fd; + return old_fd; +} + +/* + * Return open file's clientdata. + */ +thandle_t +TIFFClientdata(TIFF* tif) +{ + return (tif->tif_clientdata); +} + +/* + * Set open file's clientdata, and return previous value. + */ +thandle_t +TIFFSetClientdata(TIFF* tif, thandle_t newvalue) +{ + thandle_t m = tif->tif_clientdata; + tif->tif_clientdata = newvalue; + return m; +} + +/* + * Return read/write mode. + */ +int +TIFFGetMode(TIFF* tif) +{ + return (tif->tif_mode); +} + +/* + * Return read/write mode. + */ +int +TIFFSetMode(TIFF* tif, int mode) +{ + int old_mode = tif->tif_mode; + tif->tif_mode = mode; + return (old_mode); +} + +/* + * Return nonzero if file is organized in + * tiles; zero if organized as strips. + */ +int +TIFFIsTiled(TIFF* tif) +{ + return (isTiled(tif)); +} + +/* + * Return current row being read/written. + */ +uint32 +TIFFCurrentRow(TIFF* tif) +{ + return (tif->tif_row); +} + +/* + * Return index of the current directory. + */ +tdir_t +TIFFCurrentDirectory(TIFF* tif) +{ + return (tif->tif_curdir); +} + +/* + * Return current strip. + */ +tstrip_t +TIFFCurrentStrip(TIFF* tif) +{ + return (tif->tif_curstrip); +} + +/* + * Return current tile. + */ +ttile_t +TIFFCurrentTile(TIFF* tif) +{ + return (tif->tif_curtile); +} + +/* + * Return nonzero if the file has byte-swapped data. + */ +int +TIFFIsByteSwapped(TIFF* tif) +{ + return ((tif->tif_flags & TIFF_SWAB) != 0); +} + +/* + * Return nonzero if the data is returned up-sampled. + */ +int +TIFFIsUpSampled(TIFF* tif) +{ + return (isUpSampled(tif)); +} + +/* + * Return nonzero if the data is returned in MSB-to-LSB bit order. + */ +int +TIFFIsMSB2LSB(TIFF* tif) +{ + return (isFillOrder(tif, FILLORDER_MSB2LSB)); +} + +/* + * Return nonzero if given file was written in big-endian order. + */ +int +TIFFIsBigEndian(TIFF* tif) +{ + return (tif->tif_header.tiff_magic == TIFF_BIGENDIAN); +} + +/* + * Return pointer to file read method. + */ +TIFFReadWriteProc +TIFFGetReadProc(TIFF* tif) +{ + return (tif->tif_readproc); +} + +/* + * Return pointer to file write method. + */ +TIFFReadWriteProc +TIFFGetWriteProc(TIFF* tif) +{ + return (tif->tif_writeproc); +} + +/* + * Return pointer to file seek method. + */ +TIFFSeekProc +TIFFGetSeekProc(TIFF* tif) +{ + return (tif->tif_seekproc); +} + +/* + * Return pointer to file close method. + */ +TIFFCloseProc +TIFFGetCloseProc(TIFF* tif) +{ + return (tif->tif_closeproc); +} + +/* + * Return pointer to file size requesting method. + */ +TIFFSizeProc +TIFFGetSizeProc(TIFF* tif) +{ + return (tif->tif_sizeproc); +} + +/* + * Return pointer to memory mapping method. + */ +TIFFMapFileProc +TIFFGetMapFileProc(TIFF* tif) +{ + return (tif->tif_mapproc); +} + +/* + * Return pointer to memory unmapping method. + */ +TIFFUnmapFileProc +TIFFGetUnmapFileProc(TIFF* tif) +{ + return (tif->tif_unmapproc); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_packbits.c b/tiff/libtiff/tif_packbits.c new file mode 100644 index 0000000..ee095f5 --- /dev/null +++ b/tiff/libtiff/tif_packbits.c @@ -0,0 +1,300 @@ +/* $Id: tif_packbits.c,v 1.13.2.2 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef PACKBITS_SUPPORT +/* + * TIFF Library. + * + * PackBits Compression Algorithm Support + */ +#include <stdio.h> + +static int +PackBitsPreEncode(TIFF* tif, tsample_t s) +{ + (void) s; + + if (!(tif->tif_data = (tidata_t)_TIFFmalloc(sizeof(tsize_t)))) + return (0); + /* + * Calculate the scanline/tile-width size in bytes. + */ + if (isTiled(tif)) + *(tsize_t*)tif->tif_data = TIFFTileRowSize(tif); + else + *(tsize_t*)tif->tif_data = TIFFScanlineSize(tif); + return (1); +} + +static int +PackBitsPostEncode(TIFF* tif) +{ + if (tif->tif_data) + _TIFFfree(tif->tif_data); + return (1); +} + +/* + * NB: tidata is the type representing *(tidata_t); + * if tidata_t is made signed then this type must + * be adjusted accordingly. + */ +typedef unsigned char tidata; + +/* + * Encode a run of pixels. + */ +static int +PackBitsEncode(TIFF* tif, tidata_t buf, tsize_t cc, tsample_t s) +{ + unsigned char* bp = (unsigned char*) buf; + tidata_t op, ep, lastliteral; + long n, slop; + int b; + enum { BASE, LITERAL, RUN, LITERAL_RUN } state; + + (void) s; + op = tif->tif_rawcp; + ep = tif->tif_rawdata + tif->tif_rawdatasize; + state = BASE; + lastliteral = 0; + while (cc > 0) { + /* + * Find the longest string of identical bytes. + */ + b = *bp++, cc--, n = 1; + for (; cc > 0 && b == *bp; cc--, bp++) + n++; + again: + if (op + 2 >= ep) { /* insure space for new data */ + /* + * Be careful about writing the last + * literal. Must write up to that point + * and then copy the remainder to the + * front of the buffer. + */ + if (state == LITERAL || state == LITERAL_RUN) { + slop = op - lastliteral; + tif->tif_rawcc += lastliteral - tif->tif_rawcp; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + while (slop-- > 0) + *op++ = *lastliteral++; + lastliteral = tif->tif_rawcp; + } else { + tif->tif_rawcc += op - tif->tif_rawcp; + if (!TIFFFlushData1(tif)) + return (-1); + op = tif->tif_rawcp; + } + } + switch (state) { + case BASE: /* initial state, set run/literal */ + if (n > 1) { + state = RUN; + if (n > 128) { + *op++ = (tidata) -127; + *op++ = (tidataval_t) b; + n -= 128; + goto again; + } + *op++ = (tidataval_t)(-(n-1)); + *op++ = (tidataval_t) b; + } else { + lastliteral = op; + *op++ = 0; + *op++ = (tidataval_t) b; + state = LITERAL; + } + break; + case LITERAL: /* last object was literal string */ + if (n > 1) { + state = LITERAL_RUN; + if (n > 128) { + *op++ = (tidata) -127; + *op++ = (tidataval_t) b; + n -= 128; + goto again; + } + *op++ = (tidataval_t)(-(n-1)); /* encode run */ + *op++ = (tidataval_t) b; + } else { /* extend literal */ + if (++(*lastliteral) == 127) + state = BASE; + *op++ = (tidataval_t) b; + } + break; + case RUN: /* last object was run */ + if (n > 1) { + if (n > 128) { + *op++ = (tidata) -127; + *op++ = (tidataval_t) b; + n -= 128; + goto again; + } + *op++ = (tidataval_t)(-(n-1)); + *op++ = (tidataval_t) b; + } else { + lastliteral = op; + *op++ = 0; + *op++ = (tidataval_t) b; + state = LITERAL; + } + break; + case LITERAL_RUN: /* literal followed by a run */ + /* + * Check to see if previous run should + * be converted to a literal, in which + * case we convert literal-run-literal + * to a single literal. + */ + if (n == 1 && op[-2] == (tidata) -1 && + *lastliteral < 126) { + state = (((*lastliteral) += 2) == 127 ? + BASE : LITERAL); + op[-2] = op[-1]; /* replicate */ + } else + state = RUN; + goto again; + } + } + tif->tif_rawcc += op - tif->tif_rawcp; + tif->tif_rawcp = op; + return (1); +} + +/* + * Encode a rectangular chunk of pixels. We break it up + * into row-sized pieces to insure that encoded runs do + * not span rows. Otherwise, there can be problems with + * the decoder if data is read, for example, by scanlines + * when it was encoded by strips. + */ +static int +PackBitsEncodeChunk(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + tsize_t rowsize = *(tsize_t*)tif->tif_data; + + while ((long)cc > 0) { + int chunk = rowsize; + + if( cc < chunk ) + chunk = cc; + + if (PackBitsEncode(tif, bp, chunk, s) < 0) + return (-1); + bp += chunk; + cc -= chunk; + } + return (1); +} + +static int +PackBitsDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) +{ + char *bp; + tsize_t cc; + long n; + int b; + + (void) s; + bp = (char*) tif->tif_rawcp; + cc = tif->tif_rawcc; + while (cc > 0 && (long)occ > 0) { + n = (long) *bp++, cc--; + /* + * Watch out for compilers that + * don't sign extend chars... + */ + if (n >= 128) + n -= 256; + if (n < 0) { /* replicate next byte -n+1 times */ + if (n == -128) /* nop */ + continue; + n = -n + 1; + if( occ < n ) + { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "PackBitsDecode: discarding %ld bytes " + "to avoid buffer overrun", + n - occ); + n = occ; + } + occ -= n; + b = *bp++, cc--; + while (n-- > 0) + *op++ = (tidataval_t) b; + } else { /* copy next n+1 bytes literally */ + if (occ < n + 1) + { + TIFFWarningExt(tif->tif_clientdata, tif->tif_name, + "PackBitsDecode: discarding %ld bytes " + "to avoid buffer overrun", + n - occ + 1); + n = occ - 1; + } + _TIFFmemcpy(op, bp, ++n); + op += n; occ -= n; + bp += n; cc -= n; + } + } + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + if (occ > 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "PackBitsDecode: Not enough data for scanline %ld", + (long) tif->tif_row); + return (0); + } + return (1); +} + +int +TIFFInitPackBits(TIFF* tif, int scheme) +{ + (void) scheme; + tif->tif_decoderow = PackBitsDecode; + tif->tif_decodestrip = PackBitsDecode; + tif->tif_decodetile = PackBitsDecode; + tif->tif_preencode = PackBitsPreEncode; + tif->tif_postencode = PackBitsPostEncode; + tif->tif_encoderow = PackBitsEncode; + tif->tif_encodestrip = PackBitsEncodeChunk; + tif->tif_encodetile = PackBitsEncodeChunk; + return (1); +} +#endif /* PACKBITS_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_pixarlog.c b/tiff/libtiff/tif_pixarlog.c new file mode 100644 index 0000000..ed8eb40 --- /dev/null +++ b/tiff/libtiff/tif_pixarlog.c @@ -0,0 +1,1371 @@ +/* $Id: tif_pixarlog.c,v 1.15.2.4 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1996-1997 Sam Leffler + * Copyright (c) 1996 Pixar + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Pixar, Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Pixar, Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL PIXAR, SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef PIXARLOG_SUPPORT + +/* + * TIFF Library. + * PixarLog Compression Support + * + * Contributed by Dan McCoy. + * + * PixarLog film support uses the TIFF library to store companded + * 11 bit values into a tiff file, which are compressed using the + * zip compressor. + * + * The codec can take as input and produce as output 32-bit IEEE float values + * as well as 16-bit or 8-bit unsigned integer values. + * + * On writing any of the above are converted into the internal + * 11-bit log format. In the case of 8 and 16 bit values, the + * input is assumed to be unsigned linear color values that represent + * the range 0-1. In the case of IEEE values, the 0-1 range is assumed to + * be the normal linear color range, in addition over 1 values are + * accepted up to a value of about 25.0 to encode "hot" hightlights and such. + * The encoding is lossless for 8-bit values, slightly lossy for the + * other bit depths. The actual color precision should be better + * than the human eye can perceive with extra room to allow for + * error introduced by further image computation. As with any quantized + * color format, it is possible to perform image calculations which + * expose the quantization error. This format should certainly be less + * susceptable to such errors than standard 8-bit encodings, but more + * susceptable than straight 16-bit or 32-bit encodings. + * + * On reading the internal format is converted to the desired output format. + * The program can request which format it desires by setting the internal + * pseudo tag TIFFTAG_PIXARLOGDATAFMT to one of these possible values: + * PIXARLOGDATAFMT_FLOAT = provide IEEE float values. + * PIXARLOGDATAFMT_16BIT = provide unsigned 16-bit integer values + * PIXARLOGDATAFMT_8BIT = provide unsigned 8-bit integer values + * + * alternately PIXARLOGDATAFMT_8BITABGR provides unsigned 8-bit integer + * values with the difference that if there are exactly three or four channels + * (rgb or rgba) it swaps the channel order (bgr or abgr). + * + * PIXARLOGDATAFMT_11BITLOG provides the internal encoding directly + * packed in 16-bit values. However no tools are supplied for interpreting + * these values. + * + * "hot" (over 1.0) areas written in floating point get clamped to + * 1.0 in the integer data types. + * + * When the file is closed after writing, the bit depth and sample format + * are set always to appear as if 8-bit data has been written into it. + * That way a naive program unaware of the particulars of the encoding + * gets the format it is most likely able to handle. + * + * The codec does it's own horizontal differencing step on the coded + * values so the libraries predictor stuff should be turned off. + * The codec also handle byte swapping the encoded values as necessary + * since the library does not have the information necessary + * to know the bit depth of the raw unencoded buffer. + * + */ + +#include "tif_predict.h" +#include "zlib.h" + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> + +/* Tables for converting to/from 11 bit coded values */ + +#define TSIZE 2048 /* decode table size (11-bit tokens) */ +#define TSIZEP1 2049 /* Plus one for slop */ +#define ONE 1250 /* token value of 1.0 exactly */ +#define RATIO 1.004 /* nominal ratio for log part */ + +#define CODE_MASK 0x7ff /* 11 bits. */ + +static float Fltsize; +static float LogK1, LogK2; + +#define REPEAT(n, op) { int i; i=n; do { i--; op; } while (i>0); } + +static void +horizontalAccumulateF(uint16 *wp, int n, int stride, float *op, + float *ToLinearF) +{ + register unsigned int cr, cg, cb, ca, mask; + register float t0, t1, t2, t3; + + if (n >= stride) { + mask = CODE_MASK; + if (stride == 3) { + t0 = ToLinearF[cr = wp[0]]; + t1 = ToLinearF[cg = wp[1]]; + t2 = ToLinearF[cb = wp[2]]; + op[0] = t0; + op[1] = t1; + op[2] = t2; + n -= 3; + while (n > 0) { + wp += 3; + op += 3; + n -= 3; + t0 = ToLinearF[(cr += wp[0]) & mask]; + t1 = ToLinearF[(cg += wp[1]) & mask]; + t2 = ToLinearF[(cb += wp[2]) & mask]; + op[0] = t0; + op[1] = t1; + op[2] = t2; + } + } else if (stride == 4) { + t0 = ToLinearF[cr = wp[0]]; + t1 = ToLinearF[cg = wp[1]]; + t2 = ToLinearF[cb = wp[2]]; + t3 = ToLinearF[ca = wp[3]]; + op[0] = t0; + op[1] = t1; + op[2] = t2; + op[3] = t3; + n -= 4; + while (n > 0) { + wp += 4; + op += 4; + n -= 4; + t0 = ToLinearF[(cr += wp[0]) & mask]; + t1 = ToLinearF[(cg += wp[1]) & mask]; + t2 = ToLinearF[(cb += wp[2]) & mask]; + t3 = ToLinearF[(ca += wp[3]) & mask]; + op[0] = t0; + op[1] = t1; + op[2] = t2; + op[3] = t3; + } + } else { + REPEAT(stride, *op = ToLinearF[*wp&mask]; wp++; op++) + n -= stride; + while (n > 0) { + REPEAT(stride, + wp[stride] += *wp; *op = ToLinearF[*wp&mask]; wp++; op++) + n -= stride; + } + } + } +} + +static void +horizontalAccumulate12(uint16 *wp, int n, int stride, int16 *op, + float *ToLinearF) +{ + register unsigned int cr, cg, cb, ca, mask; + register float t0, t1, t2, t3; + +#define SCALE12 2048.0F +#define CLAMP12(t) (((t) < 3071) ? (uint16) (t) : 3071) + + if (n >= stride) { + mask = CODE_MASK; + if (stride == 3) { + t0 = ToLinearF[cr = wp[0]] * SCALE12; + t1 = ToLinearF[cg = wp[1]] * SCALE12; + t2 = ToLinearF[cb = wp[2]] * SCALE12; + op[0] = CLAMP12(t0); + op[1] = CLAMP12(t1); + op[2] = CLAMP12(t2); + n -= 3; + while (n > 0) { + wp += 3; + op += 3; + n -= 3; + t0 = ToLinearF[(cr += wp[0]) & mask] * SCALE12; + t1 = ToLinearF[(cg += wp[1]) & mask] * SCALE12; + t2 = ToLinearF[(cb += wp[2]) & mask] * SCALE12; + op[0] = CLAMP12(t0); + op[1] = CLAMP12(t1); + op[2] = CLAMP12(t2); + } + } else if (stride == 4) { + t0 = ToLinearF[cr = wp[0]] * SCALE12; + t1 = ToLinearF[cg = wp[1]] * SCALE12; + t2 = ToLinearF[cb = wp[2]] * SCALE12; + t3 = ToLinearF[ca = wp[3]] * SCALE12; + op[0] = CLAMP12(t0); + op[1] = CLAMP12(t1); + op[2] = CLAMP12(t2); + op[3] = CLAMP12(t3); + n -= 4; + while (n > 0) { + wp += 4; + op += 4; + n -= 4; + t0 = ToLinearF[(cr += wp[0]) & mask] * SCALE12; + t1 = ToLinearF[(cg += wp[1]) & mask] * SCALE12; + t2 = ToLinearF[(cb += wp[2]) & mask] * SCALE12; + t3 = ToLinearF[(ca += wp[3]) & mask] * SCALE12; + op[0] = CLAMP12(t0); + op[1] = CLAMP12(t1); + op[2] = CLAMP12(t2); + op[3] = CLAMP12(t3); + } + } else { + REPEAT(stride, t0 = ToLinearF[*wp&mask] * SCALE12; + *op = CLAMP12(t0); wp++; op++) + n -= stride; + while (n > 0) { + REPEAT(stride, + wp[stride] += *wp; t0 = ToLinearF[wp[stride]&mask]*SCALE12; + *op = CLAMP12(t0); wp++; op++) + n -= stride; + } + } + } +} + +static void +horizontalAccumulate16(uint16 *wp, int n, int stride, uint16 *op, + uint16 *ToLinear16) +{ + register unsigned int cr, cg, cb, ca, mask; + + if (n >= stride) { + mask = CODE_MASK; + if (stride == 3) { + op[0] = ToLinear16[cr = wp[0]]; + op[1] = ToLinear16[cg = wp[1]]; + op[2] = ToLinear16[cb = wp[2]]; + n -= 3; + while (n > 0) { + wp += 3; + op += 3; + n -= 3; + op[0] = ToLinear16[(cr += wp[0]) & mask]; + op[1] = ToLinear16[(cg += wp[1]) & mask]; + op[2] = ToLinear16[(cb += wp[2]) & mask]; + } + } else if (stride == 4) { + op[0] = ToLinear16[cr = wp[0]]; + op[1] = ToLinear16[cg = wp[1]]; + op[2] = ToLinear16[cb = wp[2]]; + op[3] = ToLinear16[ca = wp[3]]; + n -= 4; + while (n > 0) { + wp += 4; + op += 4; + n -= 4; + op[0] = ToLinear16[(cr += wp[0]) & mask]; + op[1] = ToLinear16[(cg += wp[1]) & mask]; + op[2] = ToLinear16[(cb += wp[2]) & mask]; + op[3] = ToLinear16[(ca += wp[3]) & mask]; + } + } else { + REPEAT(stride, *op = ToLinear16[*wp&mask]; wp++; op++) + n -= stride; + while (n > 0) { + REPEAT(stride, + wp[stride] += *wp; *op = ToLinear16[*wp&mask]; wp++; op++) + n -= stride; + } + } + } +} + +/* + * Returns the log encoded 11-bit values with the horizontal + * differencing undone. + */ +static void +horizontalAccumulate11(uint16 *wp, int n, int stride, uint16 *op) +{ + register unsigned int cr, cg, cb, ca, mask; + + if (n >= stride) { + mask = CODE_MASK; + if (stride == 3) { + op[0] = cr = wp[0]; op[1] = cg = wp[1]; op[2] = cb = wp[2]; + n -= 3; + while (n > 0) { + wp += 3; + op += 3; + n -= 3; + op[0] = (cr += wp[0]) & mask; + op[1] = (cg += wp[1]) & mask; + op[2] = (cb += wp[2]) & mask; + } + } else if (stride == 4) { + op[0] = cr = wp[0]; op[1] = cg = wp[1]; + op[2] = cb = wp[2]; op[3] = ca = wp[3]; + n -= 4; + while (n > 0) { + wp += 4; + op += 4; + n -= 4; + op[0] = (cr += wp[0]) & mask; + op[1] = (cg += wp[1]) & mask; + op[2] = (cb += wp[2]) & mask; + op[3] = (ca += wp[3]) & mask; + } + } else { + REPEAT(stride, *op = *wp&mask; wp++; op++) + n -= stride; + while (n > 0) { + REPEAT(stride, + wp[stride] += *wp; *op = *wp&mask; wp++; op++) + n -= stride; + } + } + } +} + +static void +horizontalAccumulate8(uint16 *wp, int n, int stride, unsigned char *op, + unsigned char *ToLinear8) +{ + register unsigned int cr, cg, cb, ca, mask; + + if (n >= stride) { + mask = CODE_MASK; + if (stride == 3) { + op[0] = ToLinear8[cr = wp[0]]; + op[1] = ToLinear8[cg = wp[1]]; + op[2] = ToLinear8[cb = wp[2]]; + n -= 3; + while (n > 0) { + n -= 3; + wp += 3; + op += 3; + op[0] = ToLinear8[(cr += wp[0]) & mask]; + op[1] = ToLinear8[(cg += wp[1]) & mask]; + op[2] = ToLinear8[(cb += wp[2]) & mask]; + } + } else if (stride == 4) { + op[0] = ToLinear8[cr = wp[0]]; + op[1] = ToLinear8[cg = wp[1]]; + op[2] = ToLinear8[cb = wp[2]]; + op[3] = ToLinear8[ca = wp[3]]; + n -= 4; + while (n > 0) { + n -= 4; + wp += 4; + op += 4; + op[0] = ToLinear8[(cr += wp[0]) & mask]; + op[1] = ToLinear8[(cg += wp[1]) & mask]; + op[2] = ToLinear8[(cb += wp[2]) & mask]; + op[3] = ToLinear8[(ca += wp[3]) & mask]; + } + } else { + REPEAT(stride, *op = ToLinear8[*wp&mask]; wp++; op++) + n -= stride; + while (n > 0) { + REPEAT(stride, + wp[stride] += *wp; *op = ToLinear8[*wp&mask]; wp++; op++) + n -= stride; + } + } + } +} + + +static void +horizontalAccumulate8abgr(uint16 *wp, int n, int stride, unsigned char *op, + unsigned char *ToLinear8) +{ + register unsigned int cr, cg, cb, ca, mask; + register unsigned char t0, t1, t2, t3; + + if (n >= stride) { + mask = CODE_MASK; + if (stride == 3) { + op[0] = 0; + t1 = ToLinear8[cb = wp[2]]; + t2 = ToLinear8[cg = wp[1]]; + t3 = ToLinear8[cr = wp[0]]; + op[1] = t1; + op[2] = t2; + op[3] = t3; + n -= 3; + while (n > 0) { + n -= 3; + wp += 3; + op += 4; + op[0] = 0; + t1 = ToLinear8[(cb += wp[2]) & mask]; + t2 = ToLinear8[(cg += wp[1]) & mask]; + t3 = ToLinear8[(cr += wp[0]) & mask]; + op[1] = t1; + op[2] = t2; + op[3] = t3; + } + } else if (stride == 4) { + t0 = ToLinear8[ca = wp[3]]; + t1 = ToLinear8[cb = wp[2]]; + t2 = ToLinear8[cg = wp[1]]; + t3 = ToLinear8[cr = wp[0]]; + op[0] = t0; + op[1] = t1; + op[2] = t2; + op[3] = t3; + n -= 4; + while (n > 0) { + n -= 4; + wp += 4; + op += 4; + t0 = ToLinear8[(ca += wp[3]) & mask]; + t1 = ToLinear8[(cb += wp[2]) & mask]; + t2 = ToLinear8[(cg += wp[1]) & mask]; + t3 = ToLinear8[(cr += wp[0]) & mask]; + op[0] = t0; + op[1] = t1; + op[2] = t2; + op[3] = t3; + } + } else { + REPEAT(stride, *op = ToLinear8[*wp&mask]; wp++; op++) + n -= stride; + while (n > 0) { + REPEAT(stride, + wp[stride] += *wp; *op = ToLinear8[*wp&mask]; wp++; op++) + n -= stride; + } + } + } +} + +/* + * State block for each open TIFF + * file using PixarLog compression/decompression. + */ +typedef struct { + TIFFPredictorState predict; + z_stream stream; + uint16 *tbuf; + uint16 stride; + int state; + int user_datafmt; + int quality; +#define PLSTATE_INIT 1 + + TIFFVSetMethod vgetparent; /* super-class method */ + TIFFVSetMethod vsetparent; /* super-class method */ + + float *ToLinearF; + uint16 *ToLinear16; + unsigned char *ToLinear8; + uint16 *FromLT2; + uint16 *From14; /* Really for 16-bit data, but we shift down 2 */ + uint16 *From8; + +} PixarLogState; + +static int +PixarLogMakeTables(PixarLogState *sp) +{ + +/* + * We make several tables here to convert between various external + * representations (float, 16-bit, and 8-bit) and the internal + * 11-bit companded representation. The 11-bit representation has two + * distinct regions. A linear bottom end up through .018316 in steps + * of about .000073, and a region of constant ratio up to about 25. + * These floating point numbers are stored in the main table ToLinearF. + * All other tables are derived from this one. The tables (and the + * ratios) are continuous at the internal seam. + */ + + int nlin, lt2size; + int i, j; + double b, c, linstep, v; + float *ToLinearF; + uint16 *ToLinear16; + unsigned char *ToLinear8; + uint16 *FromLT2; + uint16 *From14; /* Really for 16-bit data, but we shift down 2 */ + uint16 *From8; + + c = log(RATIO); + nlin = (int)(1./c); /* nlin must be an integer */ + c = 1./nlin; + b = exp(-c*ONE); /* multiplicative scale factor [b*exp(c*ONE) = 1] */ + linstep = b*c*exp(1.); + + LogK1 = (float)(1./c); /* if (v >= 2) token = k1*log(v*k2) */ + LogK2 = (float)(1./b); + lt2size = (int)(2./linstep) + 1; + FromLT2 = (uint16 *)_TIFFmalloc(lt2size*sizeof(uint16)); + From14 = (uint16 *)_TIFFmalloc(16384*sizeof(uint16)); + From8 = (uint16 *)_TIFFmalloc(256*sizeof(uint16)); + ToLinearF = (float *)_TIFFmalloc(TSIZEP1 * sizeof(float)); + ToLinear16 = (uint16 *)_TIFFmalloc(TSIZEP1 * sizeof(uint16)); + ToLinear8 = (unsigned char *)_TIFFmalloc(TSIZEP1 * sizeof(unsigned char)); + if (FromLT2 == NULL || From14 == NULL || From8 == NULL || + ToLinearF == NULL || ToLinear16 == NULL || ToLinear8 == NULL) { + if (FromLT2) _TIFFfree(FromLT2); + if (From14) _TIFFfree(From14); + if (From8) _TIFFfree(From8); + if (ToLinearF) _TIFFfree(ToLinearF); + if (ToLinear16) _TIFFfree(ToLinear16); + if (ToLinear8) _TIFFfree(ToLinear8); + sp->FromLT2 = NULL; + sp->From14 = NULL; + sp->From8 = NULL; + sp->ToLinearF = NULL; + sp->ToLinear16 = NULL; + sp->ToLinear8 = NULL; + return 0; + } + + j = 0; + + for (i = 0; i < nlin; i++) { + v = i * linstep; + ToLinearF[j++] = (float)v; + } + + for (i = nlin; i < TSIZE; i++) + ToLinearF[j++] = (float)(b*exp(c*i)); + + ToLinearF[2048] = ToLinearF[2047]; + + for (i = 0; i < TSIZEP1; i++) { + v = ToLinearF[i]*65535.0 + 0.5; + ToLinear16[i] = (v > 65535.0) ? 65535 : (uint16)v; + v = ToLinearF[i]*255.0 + 0.5; + ToLinear8[i] = (v > 255.0) ? 255 : (unsigned char)v; + } + + j = 0; + for (i = 0; i < lt2size; i++) { + if ((i*linstep)*(i*linstep) > ToLinearF[j]*ToLinearF[j+1]) + j++; + FromLT2[i] = j; + } + + /* + * Since we lose info anyway on 16-bit data, we set up a 14-bit + * table and shift 16-bit values down two bits on input. + * saves a little table space. + */ + j = 0; + for (i = 0; i < 16384; i++) { + while ((i/16383.)*(i/16383.) > ToLinearF[j]*ToLinearF[j+1]) + j++; + From14[i] = j; + } + + j = 0; + for (i = 0; i < 256; i++) { + while ((i/255.)*(i/255.) > ToLinearF[j]*ToLinearF[j+1]) + j++; + From8[i] = j; + } + + Fltsize = (float)(lt2size/2); + + sp->ToLinearF = ToLinearF; + sp->ToLinear16 = ToLinear16; + sp->ToLinear8 = ToLinear8; + sp->FromLT2 = FromLT2; + sp->From14 = From14; + sp->From8 = From8; + + return 1; +} + +#define DecoderState(tif) ((PixarLogState*) (tif)->tif_data) +#define EncoderState(tif) ((PixarLogState*) (tif)->tif_data) + +static int PixarLogEncode(TIFF*, tidata_t, tsize_t, tsample_t); +static int PixarLogDecode(TIFF*, tidata_t, tsize_t, tsample_t); + +#define PIXARLOGDATAFMT_UNKNOWN -1 + +static int +PixarLogGuessDataFmt(TIFFDirectory *td) +{ + int guess = PIXARLOGDATAFMT_UNKNOWN; + int format = td->td_sampleformat; + + /* If the user didn't tell us his datafmt, + * take our best guess from the bitspersample. + */ + switch (td->td_bitspersample) { + case 32: + if (format == SAMPLEFORMAT_IEEEFP) + guess = PIXARLOGDATAFMT_FLOAT; + break; + case 16: + if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_UINT) + guess = PIXARLOGDATAFMT_16BIT; + break; + case 12: + if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_INT) + guess = PIXARLOGDATAFMT_12BITPICIO; + break; + case 11: + if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_UINT) + guess = PIXARLOGDATAFMT_11BITLOG; + break; + case 8: + if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_UINT) + guess = PIXARLOGDATAFMT_8BIT; + break; + } + + return guess; +} + +static uint32 +multiply(size_t m1, size_t m2) +{ + uint32 bytes = m1 * m2; + + if (m1 && bytes / m1 != m2) + bytes = 0; + + return bytes; +} + +static int +PixarLogSetupDecode(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + PixarLogState* sp = DecoderState(tif); + tsize_t tbuf_size; + static const char module[] = "PixarLogSetupDecode"; + + assert(sp != NULL); + + /* Make sure no byte swapping happens on the data + * after decompression. */ + tif->tif_postdecode = _TIFFNoPostDecode; + + /* for some reason, we can't do this in TIFFInitPixarLog */ + + sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ? + td->td_samplesperpixel : 1); + tbuf_size = multiply(multiply(multiply(sp->stride, td->td_imagewidth), + td->td_rowsperstrip), sizeof(uint16)); + if (tbuf_size == 0) + return (0); + sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size); + if (sp->tbuf == NULL) + return (0); + if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) + sp->user_datafmt = PixarLogGuessDataFmt(td); + if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) { + TIFFErrorExt(tif->tif_clientdata, module, + "PixarLog compression can't handle bits depth/data format combination (depth: %d)", + td->td_bitspersample); + return (0); + } + + if (inflateInit(&sp->stream) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: %s", tif->tif_name, sp->stream.msg); + return (0); + } else { + sp->state |= PLSTATE_INIT; + return (1); + } +} + +/* + * Setup state for decoding a strip. + */ +static int +PixarLogPreDecode(TIFF* tif, tsample_t s) +{ + PixarLogState* sp = DecoderState(tif); + + (void) s; + assert(sp != NULL); + sp->stream.next_in = tif->tif_rawdata; + sp->stream.avail_in = tif->tif_rawcc; + return (inflateReset(&sp->stream) == Z_OK); +} + +static int +PixarLogDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) +{ + TIFFDirectory *td = &tif->tif_dir; + PixarLogState* sp = DecoderState(tif); + static const char module[] = "PixarLogDecode"; + int i, nsamples, llen; + uint16 *up; + + switch (sp->user_datafmt) { + case PIXARLOGDATAFMT_FLOAT: + nsamples = occ / sizeof(float); /* XXX float == 32 bits */ + break; + case PIXARLOGDATAFMT_16BIT: + case PIXARLOGDATAFMT_12BITPICIO: + case PIXARLOGDATAFMT_11BITLOG: + nsamples = occ / sizeof(uint16); /* XXX uint16 == 16 bits */ + break; + case PIXARLOGDATAFMT_8BIT: + case PIXARLOGDATAFMT_8BITABGR: + nsamples = occ; + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%d bit input not supported in PixarLog", + td->td_bitspersample); + return 0; + } + + llen = sp->stride * td->td_imagewidth; + + (void) s; + assert(sp != NULL); + sp->stream.next_out = (unsigned char *) sp->tbuf; + sp->stream.avail_out = nsamples * sizeof(uint16); + do { + int state = inflate(&sp->stream, Z_PARTIAL_FLUSH); + if (state == Z_STREAM_END) { + break; /* XXX */ + } + if (state == Z_DATA_ERROR) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Decoding error at scanline %d, %s", + tif->tif_name, tif->tif_row, sp->stream.msg); + if (inflateSync(&sp->stream) != Z_OK) + return (0); + continue; + } + if (state != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + } while (sp->stream.avail_out > 0); + + /* hopefully, we got all the bytes we needed */ + if (sp->stream.avail_out != 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Not enough data at scanline %d (short %d bytes)", + tif->tif_name, tif->tif_row, sp->stream.avail_out); + return (0); + } + + up = sp->tbuf; + /* Swap bytes in the data if from a different endian machine. */ + if (tif->tif_flags & TIFF_SWAB) + TIFFSwabArrayOfShort(up, nsamples); + + /* + * if llen is not an exact multiple of nsamples, the decode operation + * may overflow the output buffer, so truncate it enough to prevent + * that but still salvage as much data as possible. + */ + if (nsamples % llen) { + TIFFWarningExt(tif->tif_clientdata, module, + "%s: stride %d is not a multiple of sample count, " + "%d, data truncated.", tif->tif_name, llen, nsamples); + nsamples -= nsamples % llen; + } + + for (i = 0; i < nsamples; i += llen, up += llen) { + switch (sp->user_datafmt) { + case PIXARLOGDATAFMT_FLOAT: + horizontalAccumulateF(up, llen, sp->stride, + (float *)op, sp->ToLinearF); + op += llen * sizeof(float); + break; + case PIXARLOGDATAFMT_16BIT: + horizontalAccumulate16(up, llen, sp->stride, + (uint16 *)op, sp->ToLinear16); + op += llen * sizeof(uint16); + break; + case PIXARLOGDATAFMT_12BITPICIO: + horizontalAccumulate12(up, llen, sp->stride, + (int16 *)op, sp->ToLinearF); + op += llen * sizeof(int16); + break; + case PIXARLOGDATAFMT_11BITLOG: + horizontalAccumulate11(up, llen, sp->stride, + (uint16 *)op); + op += llen * sizeof(uint16); + break; + case PIXARLOGDATAFMT_8BIT: + horizontalAccumulate8(up, llen, sp->stride, + (unsigned char *)op, sp->ToLinear8); + op += llen * sizeof(unsigned char); + break; + case PIXARLOGDATAFMT_8BITABGR: + horizontalAccumulate8abgr(up, llen, sp->stride, + (unsigned char *)op, sp->ToLinear8); + op += llen * sizeof(unsigned char); + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "PixarLogDecode: unsupported bits/sample: %d", + td->td_bitspersample); + return (0); + } + } + + return (1); +} + +static int +PixarLogSetupEncode(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + PixarLogState* sp = EncoderState(tif); + tsize_t tbuf_size; + static const char module[] = "PixarLogSetupEncode"; + + assert(sp != NULL); + + /* for some reason, we can't do this in TIFFInitPixarLog */ + + sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ? + td->td_samplesperpixel : 1); + tbuf_size = multiply(multiply(multiply(sp->stride, td->td_imagewidth), + td->td_rowsperstrip), sizeof(uint16)); + if (tbuf_size == 0) + return (0); + sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size); + if (sp->tbuf == NULL) + return (0); + if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) + sp->user_datafmt = PixarLogGuessDataFmt(td); + if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) { + TIFFErrorExt(tif->tif_clientdata, module, "PixarLog compression can't handle %d bit linear encodings", td->td_bitspersample); + return (0); + } + + if (deflateInit(&sp->stream, sp->quality) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: %s", tif->tif_name, sp->stream.msg); + return (0); + } else { + sp->state |= PLSTATE_INIT; + return (1); + } +} + +/* + * Reset encoding state at the start of a strip. + */ +static int +PixarLogPreEncode(TIFF* tif, tsample_t s) +{ + PixarLogState *sp = EncoderState(tif); + + (void) s; + assert(sp != NULL); + sp->stream.next_out = tif->tif_rawdata; + sp->stream.avail_out = tif->tif_rawdatasize; + return (deflateReset(&sp->stream) == Z_OK); +} + +static void +horizontalDifferenceF(float *ip, int n, int stride, uint16 *wp, uint16 *FromLT2) +{ + + int32 r1, g1, b1, a1, r2, g2, b2, a2, mask; + float fltsize = Fltsize; + +#define CLAMP(v) ( (v<(float)0.) ? 0 \ + : (v<(float)2.) ? FromLT2[(int)(v*fltsize)] \ + : (v>(float)24.2) ? 2047 \ + : LogK1*log(v*LogK2) + 0.5 ) + + mask = CODE_MASK; + if (n >= stride) { + if (stride == 3) { + r2 = wp[0] = (uint16) CLAMP(ip[0]); + g2 = wp[1] = (uint16) CLAMP(ip[1]); + b2 = wp[2] = (uint16) CLAMP(ip[2]); + n -= 3; + while (n > 0) { + n -= 3; + wp += 3; + ip += 3; + r1 = (int32) CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; + g1 = (int32) CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; + b1 = (int32) CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; + } + } else if (stride == 4) { + r2 = wp[0] = (uint16) CLAMP(ip[0]); + g2 = wp[1] = (uint16) CLAMP(ip[1]); + b2 = wp[2] = (uint16) CLAMP(ip[2]); + a2 = wp[3] = (uint16) CLAMP(ip[3]); + n -= 4; + while (n > 0) { + n -= 4; + wp += 4; + ip += 4; + r1 = (int32) CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; + g1 = (int32) CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; + b1 = (int32) CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; + a1 = (int32) CLAMP(ip[3]); wp[3] = (a1-a2) & mask; a2 = a1; + } + } else { + ip += n - 1; /* point to last one */ + wp += n - 1; /* point to last one */ + n -= stride; + while (n > 0) { + REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]); + wp[stride] -= wp[0]; + wp[stride] &= mask; + wp--; ip--) + n -= stride; + } + REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]); wp--; ip--) + } + } +} + +static void +horizontalDifference16(unsigned short *ip, int n, int stride, + unsigned short *wp, uint16 *From14) +{ + register int r1, g1, b1, a1, r2, g2, b2, a2, mask; + +/* assumption is unsigned pixel values */ +#undef CLAMP +#define CLAMP(v) From14[(v) >> 2] + + mask = CODE_MASK; + if (n >= stride) { + if (stride == 3) { + r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); + b2 = wp[2] = CLAMP(ip[2]); + n -= 3; + while (n > 0) { + n -= 3; + wp += 3; + ip += 3; + r1 = CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; + g1 = CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; + b1 = CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; + } + } else if (stride == 4) { + r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); + b2 = wp[2] = CLAMP(ip[2]); a2 = wp[3] = CLAMP(ip[3]); + n -= 4; + while (n > 0) { + n -= 4; + wp += 4; + ip += 4; + r1 = CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; + g1 = CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; + b1 = CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; + a1 = CLAMP(ip[3]); wp[3] = (a1-a2) & mask; a2 = a1; + } + } else { + ip += n - 1; /* point to last one */ + wp += n - 1; /* point to last one */ + n -= stride; + while (n > 0) { + REPEAT(stride, wp[0] = CLAMP(ip[0]); + wp[stride] -= wp[0]; + wp[stride] &= mask; + wp--; ip--) + n -= stride; + } + REPEAT(stride, wp[0] = CLAMP(ip[0]); wp--; ip--) + } + } +} + + +static void +horizontalDifference8(unsigned char *ip, int n, int stride, + unsigned short *wp, uint16 *From8) +{ + register int r1, g1, b1, a1, r2, g2, b2, a2, mask; + +#undef CLAMP +#define CLAMP(v) (From8[(v)]) + + mask = CODE_MASK; + if (n >= stride) { + if (stride == 3) { + r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); + b2 = wp[2] = CLAMP(ip[2]); + n -= 3; + while (n > 0) { + n -= 3; + r1 = CLAMP(ip[3]); wp[3] = (r1-r2) & mask; r2 = r1; + g1 = CLAMP(ip[4]); wp[4] = (g1-g2) & mask; g2 = g1; + b1 = CLAMP(ip[5]); wp[5] = (b1-b2) & mask; b2 = b1; + wp += 3; + ip += 3; + } + } else if (stride == 4) { + r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); + b2 = wp[2] = CLAMP(ip[2]); a2 = wp[3] = CLAMP(ip[3]); + n -= 4; + while (n > 0) { + n -= 4; + r1 = CLAMP(ip[4]); wp[4] = (r1-r2) & mask; r2 = r1; + g1 = CLAMP(ip[5]); wp[5] = (g1-g2) & mask; g2 = g1; + b1 = CLAMP(ip[6]); wp[6] = (b1-b2) & mask; b2 = b1; + a1 = CLAMP(ip[7]); wp[7] = (a1-a2) & mask; a2 = a1; + wp += 4; + ip += 4; + } + } else { + wp += n + stride - 1; /* point to last one */ + ip += n + stride - 1; /* point to last one */ + n -= stride; + while (n > 0) { + REPEAT(stride, wp[0] = CLAMP(ip[0]); + wp[stride] -= wp[0]; + wp[stride] &= mask; + wp--; ip--) + n -= stride; + } + REPEAT(stride, wp[0] = CLAMP(ip[0]); wp--; ip--) + } + } +} + +/* + * Encode a chunk of pixels. + */ +static int +PixarLogEncode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + TIFFDirectory *td = &tif->tif_dir; + PixarLogState *sp = EncoderState(tif); + static const char module[] = "PixarLogEncode"; + int i, n, llen; + unsigned short * up; + + (void) s; + + switch (sp->user_datafmt) { + case PIXARLOGDATAFMT_FLOAT: + n = cc / sizeof(float); /* XXX float == 32 bits */ + break; + case PIXARLOGDATAFMT_16BIT: + case PIXARLOGDATAFMT_12BITPICIO: + case PIXARLOGDATAFMT_11BITLOG: + n = cc / sizeof(uint16); /* XXX uint16 == 16 bits */ + break; + case PIXARLOGDATAFMT_8BIT: + case PIXARLOGDATAFMT_8BITABGR: + n = cc; + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%d bit input not supported in PixarLog", + td->td_bitspersample); + return 0; + } + + llen = sp->stride * td->td_imagewidth; + + for (i = 0, up = sp->tbuf; i < n; i += llen, up += llen) { + switch (sp->user_datafmt) { + case PIXARLOGDATAFMT_FLOAT: + horizontalDifferenceF((float *)bp, llen, + sp->stride, up, sp->FromLT2); + bp += llen * sizeof(float); + break; + case PIXARLOGDATAFMT_16BIT: + horizontalDifference16((uint16 *)bp, llen, + sp->stride, up, sp->From14); + bp += llen * sizeof(uint16); + break; + case PIXARLOGDATAFMT_8BIT: + horizontalDifference8((unsigned char *)bp, llen, + sp->stride, up, sp->From8); + bp += llen * sizeof(unsigned char); + break; + default: + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%d bit input not supported in PixarLog", + td->td_bitspersample); + return 0; + } + } + + sp->stream.next_in = (unsigned char *) sp->tbuf; + sp->stream.avail_in = n * sizeof(uint16); + + do { + if (deflate(&sp->stream, Z_NO_FLUSH) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Encoder error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + if (sp->stream.avail_out == 0) { + tif->tif_rawcc = tif->tif_rawdatasize; + TIFFFlushData1(tif); + sp->stream.next_out = tif->tif_rawdata; + sp->stream.avail_out = tif->tif_rawdatasize; + } + } while (sp->stream.avail_in > 0); + return (1); +} + +/* + * Finish off an encoded strip by flushing the last + * string and tacking on an End Of Information code. + */ + +static int +PixarLogPostEncode(TIFF* tif) +{ + PixarLogState *sp = EncoderState(tif); + static const char module[] = "PixarLogPostEncode"; + int state; + + sp->stream.avail_in = 0; + + do { + state = deflate(&sp->stream, Z_FINISH); + switch (state) { + case Z_STREAM_END: + case Z_OK: + if (sp->stream.avail_out != (uint32)tif->tif_rawdatasize) { + tif->tif_rawcc = + tif->tif_rawdatasize - sp->stream.avail_out; + TIFFFlushData1(tif); + sp->stream.next_out = tif->tif_rawdata; + sp->stream.avail_out = tif->tif_rawdatasize; + } + break; + default: + TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + } while (state != Z_STREAM_END); + return (1); +} + +static void +PixarLogClose(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + + /* In a really sneaky maneuver, on close, we covertly modify both + * bitspersample and sampleformat in the directory to indicate + * 8-bit linear. This way, the decode "just works" even for + * readers that don't know about PixarLog, or how to set + * the PIXARLOGDATFMT pseudo-tag. + */ + td->td_bitspersample = 8; + td->td_sampleformat = SAMPLEFORMAT_UINT; +} + +static void +PixarLogCleanup(TIFF* tif) +{ + PixarLogState* sp = (PixarLogState*) tif->tif_data; + + assert(sp != 0); + + (void)TIFFPredictorCleanup(tif); + + tif->tif_tagmethods.vgetfield = sp->vgetparent; + tif->tif_tagmethods.vsetfield = sp->vsetparent; + + if (sp->FromLT2) _TIFFfree(sp->FromLT2); + if (sp->From14) _TIFFfree(sp->From14); + if (sp->From8) _TIFFfree(sp->From8); + if (sp->ToLinearF) _TIFFfree(sp->ToLinearF); + if (sp->ToLinear16) _TIFFfree(sp->ToLinear16); + if (sp->ToLinear8) _TIFFfree(sp->ToLinear8); + if (sp->state&PLSTATE_INIT) { + if (tif->tif_mode == O_RDONLY) + inflateEnd(&sp->stream); + else + deflateEnd(&sp->stream); + } + if (sp->tbuf) + _TIFFfree(sp->tbuf); + _TIFFfree(sp); + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +static int +PixarLogVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + PixarLogState *sp = (PixarLogState *)tif->tif_data; + int result; + static const char module[] = "PixarLogVSetField"; + + switch (tag) { + case TIFFTAG_PIXARLOGQUALITY: + sp->quality = va_arg(ap, int); + if (tif->tif_mode != O_RDONLY && (sp->state&PLSTATE_INIT)) { + if (deflateParams(&sp->stream, + sp->quality, Z_DEFAULT_STRATEGY) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + } + return (1); + case TIFFTAG_PIXARLOGDATAFMT: + sp->user_datafmt = va_arg(ap, int); + /* Tweak the TIFF header so that the rest of libtiff knows what + * size of data will be passed between app and library, and + * assume that the app knows what it is doing and is not + * confused by these header manipulations... + */ + switch (sp->user_datafmt) { + case PIXARLOGDATAFMT_8BIT: + case PIXARLOGDATAFMT_8BITABGR: + TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); + TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); + break; + case PIXARLOGDATAFMT_11BITLOG: + TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 16); + TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); + break; + case PIXARLOGDATAFMT_12BITPICIO: + TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 16); + TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_INT); + break; + case PIXARLOGDATAFMT_16BIT: + TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 16); + TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); + break; + case PIXARLOGDATAFMT_FLOAT: + TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 32); + TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_IEEEFP); + break; + } + /* + * Must recalculate sizes should bits/sample change. + */ + tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; + tif->tif_scanlinesize = TIFFScanlineSize(tif); + result = 1; /* NB: pseudo tag */ + break; + default: + result = (*sp->vsetparent)(tif, tag, ap); + } + return (result); +} + +static int +PixarLogVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + PixarLogState *sp = (PixarLogState *)tif->tif_data; + + switch (tag) { + case TIFFTAG_PIXARLOGQUALITY: + *va_arg(ap, int*) = sp->quality; + break; + case TIFFTAG_PIXARLOGDATAFMT: + *va_arg(ap, int*) = sp->user_datafmt; + break; + default: + return (*sp->vgetparent)(tif, tag, ap); + } + return (1); +} + +static const TIFFFieldInfo pixarlogFieldInfo[] = { + {TIFFTAG_PIXARLOGDATAFMT,0,0,TIFF_ANY, FIELD_PSEUDO,FALSE,FALSE,""}, + {TIFFTAG_PIXARLOGQUALITY,0,0,TIFF_ANY, FIELD_PSEUDO,FALSE,FALSE,""} +}; + +int +TIFFInitPixarLog(TIFF* tif, int scheme) +{ + static const char module[] = "TIFFInitPixarLog"; + + PixarLogState* sp; + + assert(scheme == COMPRESSION_PIXARLOG); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, pixarlogFieldInfo, + TIFFArrayCount(pixarlogFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging PixarLog codec-specific tags failed"); + return 0; + } + + /* + * Allocate state block so tag methods have storage to record values. + */ + tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (PixarLogState)); + if (tif->tif_data == NULL) + goto bad; + sp = (PixarLogState*) tif->tif_data; + _TIFFmemset(sp, 0, sizeof (*sp)); + sp->stream.data_type = Z_BINARY; + sp->user_datafmt = PIXARLOGDATAFMT_UNKNOWN; + + /* + * Install codec methods. + */ + tif->tif_setupdecode = PixarLogSetupDecode; + tif->tif_predecode = PixarLogPreDecode; + tif->tif_decoderow = PixarLogDecode; + tif->tif_decodestrip = PixarLogDecode; + tif->tif_decodetile = PixarLogDecode; + tif->tif_setupencode = PixarLogSetupEncode; + tif->tif_preencode = PixarLogPreEncode; + tif->tif_postencode = PixarLogPostEncode; + tif->tif_encoderow = PixarLogEncode; + tif->tif_encodestrip = PixarLogEncode; + tif->tif_encodetile = PixarLogEncode; + tif->tif_close = PixarLogClose; + tif->tif_cleanup = PixarLogCleanup; + + /* Override SetField so we can handle our private pseudo-tag */ + sp->vgetparent = tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield = PixarLogVGetField; /* hook for codec tags */ + sp->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield = PixarLogVSetField; /* hook for codec tags */ + + /* Default values for codec-specific fields */ + sp->quality = Z_DEFAULT_COMPRESSION; /* default comp. level */ + sp->state = 0; + + /* we don't wish to use the predictor, + * the default is none, which predictor value 1 + */ + (void) TIFFPredictorInit(tif); + + /* + * build the companding tables + */ + PixarLogMakeTables(sp); + + return (1); +bad: + TIFFErrorExt(tif->tif_clientdata, module, + "No space for PixarLog state block"); + return (0); +} +#endif /* PIXARLOG_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_predict.c b/tiff/libtiff/tif_predict.c new file mode 100644 index 0000000..bbc221f --- /dev/null +++ b/tiff/libtiff/tif_predict.c @@ -0,0 +1,736 @@ +/* $Id: tif_predict.c,v 1.11.2.4 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Predictor Tag Support (used by multiple codecs). + */ +#include "tiffiop.h" +#include "tif_predict.h" + +#define PredictorState(tif) ((TIFFPredictorState*) (tif)->tif_data) + +static void horAcc8(TIFF*, tidata_t, tsize_t); +static void horAcc16(TIFF*, tidata_t, tsize_t); +static void horAcc32(TIFF*, tidata_t, tsize_t); +static void swabHorAcc16(TIFF*, tidata_t, tsize_t); +static void swabHorAcc32(TIFF*, tidata_t, tsize_t); +static void horDiff8(TIFF*, tidata_t, tsize_t); +static void horDiff16(TIFF*, tidata_t, tsize_t); +static void horDiff32(TIFF*, tidata_t, tsize_t); +static void fpAcc(TIFF*, tidata_t, tsize_t); +static void fpDiff(TIFF*, tidata_t, tsize_t); +static int PredictorDecodeRow(TIFF*, tidata_t, tsize_t, tsample_t); +static int PredictorDecodeTile(TIFF*, tidata_t, tsize_t, tsample_t); +static int PredictorEncodeRow(TIFF*, tidata_t, tsize_t, tsample_t); +static int PredictorEncodeTile(TIFF*, tidata_t, tsize_t, tsample_t); + +static int +PredictorSetup(TIFF* tif) +{ + static const char module[] = "PredictorSetup"; + + TIFFPredictorState* sp = PredictorState(tif); + TIFFDirectory* td = &tif->tif_dir; + + switch (sp->predictor) /* no differencing */ + { + case PREDICTOR_NONE: + return 1; + case PREDICTOR_HORIZONTAL: + if (td->td_bitspersample != 8 + && td->td_bitspersample != 16 + && td->td_bitspersample != 32) { + TIFFErrorExt(tif->tif_clientdata, module, + "Horizontal differencing \"Predictor\" not supported with %d-bit samples", + td->td_bitspersample); + return 0; + } + break; + case PREDICTOR_FLOATINGPOINT: + if (td->td_sampleformat != SAMPLEFORMAT_IEEEFP) { + TIFFErrorExt(tif->tif_clientdata, module, + "Floating point \"Predictor\" not supported with %d data format", + td->td_sampleformat); + return 0; + } + break; + default: + TIFFErrorExt(tif->tif_clientdata, module, + "\"Predictor\" value %d not supported", + sp->predictor); + return 0; + } + sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ? + td->td_samplesperpixel : 1); + /* + * Calculate the scanline/tile-width size in bytes. + */ + if (isTiled(tif)) + sp->rowsize = TIFFTileRowSize(tif); + else + sp->rowsize = TIFFScanlineSize(tif); + + return 1; +} + +static int +PredictorSetupDecode(TIFF* tif) +{ + TIFFPredictorState* sp = PredictorState(tif); + TIFFDirectory* td = &tif->tif_dir; + + if (!(*sp->setupdecode)(tif) || !PredictorSetup(tif)) + return 0; + + if (sp->predictor == 2) { + switch (td->td_bitspersample) { + case 8: sp->decodepfunc = horAcc8; break; + case 16: sp->decodepfunc = horAcc16; break; + case 32: sp->decodepfunc = horAcc32; break; + } + /* + * Override default decoding method with one that does the + * predictor stuff. + */ + if( tif->tif_decoderow != PredictorDecodeRow ) + { + sp->decoderow = tif->tif_decoderow; + tif->tif_decoderow = PredictorDecodeRow; + sp->decodestrip = tif->tif_decodestrip; + tif->tif_decodestrip = PredictorDecodeTile; + sp->decodetile = tif->tif_decodetile; + tif->tif_decodetile = PredictorDecodeTile; + } + /* + * If the data is horizontally differenced 16-bit data that + * requires byte-swapping, then it must be byte swapped before + * the accumulation step. We do this with a special-purpose + * routine and override the normal post decoding logic that + * the library setup when the directory was read. + */ + if (tif->tif_flags & TIFF_SWAB) { + if (sp->decodepfunc == horAcc16) { + sp->decodepfunc = swabHorAcc16; + tif->tif_postdecode = _TIFFNoPostDecode; + } else if (sp->decodepfunc == horAcc32) { + sp->decodepfunc = swabHorAcc32; + tif->tif_postdecode = _TIFFNoPostDecode; + } + } + } + + else if (sp->predictor == 3) { + sp->decodepfunc = fpAcc; + /* + * Override default decoding method with one that does the + * predictor stuff. + */ + if( tif->tif_decoderow != PredictorDecodeRow ) + { + sp->decoderow = tif->tif_decoderow; + tif->tif_decoderow = PredictorDecodeRow; + sp->decodestrip = tif->tif_decodestrip; + tif->tif_decodestrip = PredictorDecodeTile; + sp->decodetile = tif->tif_decodetile; + tif->tif_decodetile = PredictorDecodeTile; + } + /* + * The data should not be swapped outside of the floating + * point predictor, the accumulation routine should return + * byres in the native order. + */ + if (tif->tif_flags & TIFF_SWAB) { + tif->tif_postdecode = _TIFFNoPostDecode; + } + /* + * Allocate buffer to keep the decoded bytes before + * rearranging in the ight order + */ + } + + return 1; +} + +static int +PredictorSetupEncode(TIFF* tif) +{ + TIFFPredictorState* sp = PredictorState(tif); + TIFFDirectory* td = &tif->tif_dir; + + if (!(*sp->setupencode)(tif) || !PredictorSetup(tif)) + return 0; + + if (sp->predictor == 2) { + switch (td->td_bitspersample) { + case 8: sp->encodepfunc = horDiff8; break; + case 16: sp->encodepfunc = horDiff16; break; + case 32: sp->encodepfunc = horDiff32; break; + } + /* + * Override default encoding method with one that does the + * predictor stuff. + */ + if( tif->tif_encoderow != PredictorEncodeRow ) + { + sp->encoderow = tif->tif_encoderow; + tif->tif_encoderow = PredictorEncodeRow; + sp->encodestrip = tif->tif_encodestrip; + tif->tif_encodestrip = PredictorEncodeTile; + sp->encodetile = tif->tif_encodetile; + tif->tif_encodetile = PredictorEncodeTile; + } + } + + else if (sp->predictor == 3) { + sp->encodepfunc = fpDiff; + /* + * Override default encoding method with one that does the + * predictor stuff. + */ + if( tif->tif_encoderow != PredictorEncodeRow ) + { + sp->encoderow = tif->tif_encoderow; + tif->tif_encoderow = PredictorEncodeRow; + sp->encodestrip = tif->tif_encodestrip; + tif->tif_encodestrip = PredictorEncodeTile; + sp->encodetile = tif->tif_encodetile; + tif->tif_encodetile = PredictorEncodeTile; + } + } + + return 1; +} + +#define REPEAT4(n, op) \ + switch (n) { \ + default: { int i; for (i = n-4; i > 0; i--) { op; } } \ + case 4: op; \ + case 3: op; \ + case 2: op; \ + case 1: op; \ + case 0: ; \ + } + +static void +horAcc8(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + + char* cp = (char*) cp0; + if (cc > stride) { + cc -= stride; + /* + * Pipeline the most common cases. + */ + if (stride == 3) { + unsigned int cr = cp[0]; + unsigned int cg = cp[1]; + unsigned int cb = cp[2]; + do { + cc -= 3, cp += 3; + cp[0] = (char) (cr += cp[0]); + cp[1] = (char) (cg += cp[1]); + cp[2] = (char) (cb += cp[2]); + } while ((int32) cc > 0); + } else if (stride == 4) { + unsigned int cr = cp[0]; + unsigned int cg = cp[1]; + unsigned int cb = cp[2]; + unsigned int ca = cp[3]; + do { + cc -= 4, cp += 4; + cp[0] = (char) (cr += cp[0]); + cp[1] = (char) (cg += cp[1]); + cp[2] = (char) (cb += cp[2]); + cp[3] = (char) (ca += cp[3]); + } while ((int32) cc > 0); + } else { + do { + REPEAT4(stride, cp[stride] = + (char) (cp[stride] + *cp); cp++) + cc -= stride; + } while ((int32) cc > 0); + } + } +} + +static void +swabHorAcc16(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint16* wp = (uint16*) cp0; + tsize_t wc = cc / 2; + + if (wc > stride) { + TIFFSwabArrayOfShort(wp, wc); + wc -= stride; + do { + REPEAT4(stride, wp[stride] += wp[0]; wp++) + wc -= stride; + } while ((int32) wc > 0); + } +} + +static void +horAcc16(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint16* wp = (uint16*) cp0; + tsize_t wc = cc / 2; + + if (wc > stride) { + wc -= stride; + do { + REPEAT4(stride, wp[stride] += wp[0]; wp++) + wc -= stride; + } while ((int32) wc > 0); + } +} + +static void +swabHorAcc32(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint32* wp = (uint32*) cp0; + tsize_t wc = cc / 4; + + if (wc > stride) { + TIFFSwabArrayOfLong(wp, wc); + wc -= stride; + do { + REPEAT4(stride, wp[stride] += wp[0]; wp++) + wc -= stride; + } while ((int32) wc > 0); + } +} + +static void +horAcc32(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint32* wp = (uint32*) cp0; + tsize_t wc = cc / 4; + + if (wc > stride) { + wc -= stride; + do { + REPEAT4(stride, wp[stride] += wp[0]; wp++) + wc -= stride; + } while ((int32) wc > 0); + } +} + +/* + * Floating point predictor accumulation routine. + */ +static void +fpAcc(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint32 bps = tif->tif_dir.td_bitspersample / 8; + tsize_t wc = cc / bps; + tsize_t count = cc; + uint8 *cp = (uint8 *) cp0; + uint8 *tmp = (uint8 *)_TIFFmalloc(cc); + + if (!tmp) + return; + + while (count > stride) { + REPEAT4(stride, cp[stride] += cp[0]; cp++) + count -= stride; + } + + _TIFFmemcpy(tmp, cp0, cc); + cp = (uint8 *) cp0; + for (count = 0; count < wc; count++) { + uint32 byte; + for (byte = 0; byte < bps; byte++) { +#if WORDS_BIGENDIAN + cp[bps * count + byte] = tmp[byte * wc + count]; +#else + cp[bps * count + byte] = + tmp[(bps - byte - 1) * wc + count]; +#endif + } + } + _TIFFfree(tmp); +} + +/* + * Decode a scanline and apply the predictor routine. + */ +static int +PredictorDecodeRow(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) +{ + TIFFPredictorState *sp = PredictorState(tif); + + assert(sp != NULL); + assert(sp->decoderow != NULL); + assert(sp->decodepfunc != NULL); + + if ((*sp->decoderow)(tif, op0, occ0, s)) { + (*sp->decodepfunc)(tif, op0, occ0); + return 1; + } else + return 0; +} + +/* + * Decode a tile/strip and apply the predictor routine. + * Note that horizontal differencing must be done on a + * row-by-row basis. The width of a "row" has already + * been calculated at pre-decode time according to the + * strip/tile dimensions. + */ +static int +PredictorDecodeTile(TIFF* tif, tidata_t op0, tsize_t occ0, tsample_t s) +{ + TIFFPredictorState *sp = PredictorState(tif); + + assert(sp != NULL); + assert(sp->decodetile != NULL); + + if ((*sp->decodetile)(tif, op0, occ0, s)) { + tsize_t rowsize = sp->rowsize; + assert(rowsize > 0); + assert(sp->decodepfunc != NULL); + while ((long)occ0 > 0) { + (*sp->decodepfunc)(tif, op0, (tsize_t) rowsize); + occ0 -= rowsize; + op0 += rowsize; + } + return 1; + } else + return 0; +} + +static void +horDiff8(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + TIFFPredictorState* sp = PredictorState(tif); + tsize_t stride = sp->stride; + char* cp = (char*) cp0; + + if (cc > stride) { + cc -= stride; + /* + * Pipeline the most common cases. + */ + if (stride == 3) { + int r1, g1, b1; + int r2 = cp[0]; + int g2 = cp[1]; + int b2 = cp[2]; + do { + r1 = cp[3]; cp[3] = r1-r2; r2 = r1; + g1 = cp[4]; cp[4] = g1-g2; g2 = g1; + b1 = cp[5]; cp[5] = b1-b2; b2 = b1; + cp += 3; + } while ((int32)(cc -= 3) > 0); + } else if (stride == 4) { + int r1, g1, b1, a1; + int r2 = cp[0]; + int g2 = cp[1]; + int b2 = cp[2]; + int a2 = cp[3]; + do { + r1 = cp[4]; cp[4] = r1-r2; r2 = r1; + g1 = cp[5]; cp[5] = g1-g2; g2 = g1; + b1 = cp[6]; cp[6] = b1-b2; b2 = b1; + a1 = cp[7]; cp[7] = a1-a2; a2 = a1; + cp += 4; + } while ((int32)(cc -= 4) > 0); + } else { + cp += cc - 1; + do { + REPEAT4(stride, cp[stride] -= cp[0]; cp--) + } while ((int32)(cc -= stride) > 0); + } + } +} + +static void +horDiff16(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + TIFFPredictorState* sp = PredictorState(tif); + tsize_t stride = sp->stride; + int16 *wp = (int16*) cp0; + tsize_t wc = cc/2; + + if (wc > stride) { + wc -= stride; + wp += wc - 1; + do { + REPEAT4(stride, wp[stride] -= wp[0]; wp--) + wc -= stride; + } while ((int32) wc > 0); + } +} + +static void +horDiff32(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + TIFFPredictorState* sp = PredictorState(tif); + tsize_t stride = sp->stride; + int32 *wp = (int32*) cp0; + tsize_t wc = cc/4; + + if (wc > stride) { + wc -= stride; + wp += wc - 1; + do { + REPEAT4(stride, wp[stride] -= wp[0]; wp--) + wc -= stride; + } while ((int32) wc > 0); + } +} + +/* + * Floating point predictor differencing routine. + */ +static void +fpDiff(TIFF* tif, tidata_t cp0, tsize_t cc) +{ + tsize_t stride = PredictorState(tif)->stride; + uint32 bps = tif->tif_dir.td_bitspersample / 8; + tsize_t wc = cc / bps; + tsize_t count; + uint8 *cp = (uint8 *) cp0; + uint8 *tmp = (uint8 *)_TIFFmalloc(cc); + + if (!tmp) + return; + + _TIFFmemcpy(tmp, cp0, cc); + for (count = 0; count < wc; count++) { + uint32 byte; + for (byte = 0; byte < bps; byte++) { +#if WORDS_BIGENDIAN + cp[byte * wc + count] = tmp[bps * count + byte]; +#else + cp[(bps - byte - 1) * wc + count] = + tmp[bps * count + byte]; +#endif + } + } + _TIFFfree(tmp); + + cp = (uint8 *) cp0; + cp += cc - stride - 1; + for (count = cc; count > stride; count -= stride) + REPEAT4(stride, cp[stride] -= cp[0]; cp--) +} + +static int +PredictorEncodeRow(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + TIFFPredictorState *sp = PredictorState(tif); + + assert(sp != NULL); + assert(sp->encodepfunc != NULL); + assert(sp->encoderow != NULL); + + /* XXX horizontal differencing alters user's data XXX */ + (*sp->encodepfunc)(tif, bp, cc); + return (*sp->encoderow)(tif, bp, cc, s); +} + +static int +PredictorEncodeTile(TIFF* tif, tidata_t bp0, tsize_t cc0, tsample_t s) +{ + static const char module[] = "PredictorEncodeTile"; + TIFFPredictorState *sp = PredictorState(tif); + uint8 *working_copy; + tsize_t cc = cc0, rowsize; + unsigned char* bp; + int result_code; + + assert(sp != NULL); + assert(sp->encodepfunc != NULL); + assert(sp->encodetile != NULL); + + /* + * Do predictor manipulation in a working buffer to avoid altering + * the callers buffer. http://trac.osgeo.org/gdal/ticket/1965 + */ + working_copy = (uint8*) _TIFFmalloc(cc0); + if( working_copy == NULL ) + { + TIFFErrorExt(tif->tif_clientdata, module, + "Out of memory allocating %d byte temp buffer.", + cc0 ); + return 0; + } + memcpy( working_copy, bp0, cc0 ); + bp = working_copy; + + rowsize = sp->rowsize; + assert(rowsize > 0); + assert((cc0%rowsize)==0); + while (cc > 0) { + (*sp->encodepfunc)(tif, bp, rowsize); + cc -= rowsize; + bp += rowsize; + } + result_code = (*sp->encodetile)(tif, working_copy, cc0, s); + + _TIFFfree( working_copy ); + + return result_code; +} + +#define FIELD_PREDICTOR (FIELD_CODEC+0) /* XXX */ + +static const TIFFFieldInfo predictFieldInfo[] = { + { TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, FIELD_PREDICTOR, + FALSE, FALSE, "Predictor" }, +}; + +static int +PredictorVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + TIFFPredictorState *sp = PredictorState(tif); + + assert(sp != NULL); + assert(sp->vsetparent != NULL); + + switch (tag) { + case TIFFTAG_PREDICTOR: + sp->predictor = (uint16) va_arg(ap, int); + TIFFSetFieldBit(tif, FIELD_PREDICTOR); + break; + default: + return (*sp->vsetparent)(tif, tag, ap); + } + tif->tif_flags |= TIFF_DIRTYDIRECT; + return 1; +} + +static int +PredictorVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + TIFFPredictorState *sp = PredictorState(tif); + + assert(sp != NULL); + assert(sp->vgetparent != NULL); + + switch (tag) { + case TIFFTAG_PREDICTOR: + *va_arg(ap, uint16*) = sp->predictor; + break; + default: + return (*sp->vgetparent)(tif, tag, ap); + } + return 1; +} + +static void +PredictorPrintDir(TIFF* tif, FILE* fd, long flags) +{ + TIFFPredictorState* sp = PredictorState(tif); + + (void) flags; + if (TIFFFieldSet(tif,FIELD_PREDICTOR)) { + fprintf(fd, " Predictor: "); + switch (sp->predictor) { + case 1: fprintf(fd, "none "); break; + case 2: fprintf(fd, "horizontal differencing "); break; + case 3: fprintf(fd, "floating point predictor "); break; + } + fprintf(fd, "%u (0x%x)\n", sp->predictor, sp->predictor); + } + if (sp->printdir) + (*sp->printdir)(tif, fd, flags); +} + +int +TIFFPredictorInit(TIFF* tif) +{ + TIFFPredictorState* sp = PredictorState(tif); + + assert(sp != 0); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, predictFieldInfo, + TIFFArrayCount(predictFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, "TIFFPredictorInit", + "Merging Predictor codec-specific tags failed"); + return 0; + } + + /* + * Override parent get/set field methods. + */ + sp->vgetparent = tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield = + PredictorVGetField;/* hook for predictor tag */ + sp->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield = + PredictorVSetField;/* hook for predictor tag */ + sp->printdir = tif->tif_tagmethods.printdir; + tif->tif_tagmethods.printdir = + PredictorPrintDir; /* hook for predictor tag */ + + sp->setupdecode = tif->tif_setupdecode; + tif->tif_setupdecode = PredictorSetupDecode; + sp->setupencode = tif->tif_setupencode; + tif->tif_setupencode = PredictorSetupEncode; + + sp->predictor = 1; /* default value */ + sp->encodepfunc = NULL; /* no predictor routine */ + sp->decodepfunc = NULL; /* no predictor routine */ + return 1; +} + +int +TIFFPredictorCleanup(TIFF* tif) +{ + TIFFPredictorState* sp = PredictorState(tif); + + assert(sp != 0); + + tif->tif_tagmethods.vgetfield = sp->vgetparent; + tif->tif_tagmethods.vsetfield = sp->vsetparent; + tif->tif_tagmethods.printdir = sp->printdir; + tif->tif_setupdecode = sp->setupdecode; + tif->tif_setupencode = sp->setupencode; + + return 1; +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_predict.h b/tiff/libtiff/tif_predict.h new file mode 100644 index 0000000..da0ad98 --- /dev/null +++ b/tiff/libtiff/tif_predict.h @@ -0,0 +1,77 @@ +/* $Id: tif_predict.h,v 1.3.2.2 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1995-1997 Sam Leffler + * Copyright (c) 1995-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _TIFFPREDICT_ +#define _TIFFPREDICT_ +/* + * ``Library-private'' Support for the Predictor Tag + */ + +/* + * Codecs that want to support the Predictor tag must place + * this structure first in their private state block so that + * the predictor code can cast tif_data to find its state. + */ +typedef struct { + int predictor; /* predictor tag value */ + int stride; /* sample stride over data */ + tsize_t rowsize; /* tile/strip row size */ + + TIFFCodeMethod encoderow; /* parent codec encode/decode row */ + TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */ + TIFFCodeMethod encodetile; /* parent codec encode/decode tile */ + TIFFPostMethod encodepfunc; /* horizontal differencer */ + + TIFFCodeMethod decoderow; /* parent codec encode/decode row */ + TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */ + TIFFCodeMethod decodetile; /* parent codec encode/decode tile */ + TIFFPostMethod decodepfunc; /* horizontal accumulator */ + + TIFFVGetMethod vgetparent; /* super-class method */ + TIFFVSetMethod vsetparent; /* super-class method */ + TIFFPrintMethod printdir; /* super-class method */ + TIFFBoolMethod setupdecode; /* super-class method */ + TIFFBoolMethod setupencode; /* super-class method */ +} TIFFPredictorState; + +#if defined(__cplusplus) +extern "C" { +#endif +extern int TIFFPredictorInit(TIFF*); +extern int TIFFPredictorCleanup(TIFF*); +#if defined(__cplusplus) +} +#endif +#endif /* _TIFFPREDICT_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_print.c b/tiff/libtiff/tif_print.c new file mode 100644 index 0000000..eb4b1e7 --- /dev/null +++ b/tiff/libtiff/tif_print.c @@ -0,0 +1,646 @@ +/* $Id: tif_print.c,v 1.36.2.4 2010-06-08 18:50:42 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Directory Printing Support + */ +#include "tiffiop.h" +#include <stdio.h> +#include <string.h> +#include <ctype.h> + +static const char *photoNames[] = { + "min-is-white", /* PHOTOMETRIC_MINISWHITE */ + "min-is-black", /* PHOTOMETRIC_MINISBLACK */ + "RGB color", /* PHOTOMETRIC_RGB */ + "palette color (RGB from colormap)", /* PHOTOMETRIC_PALETTE */ + "transparency mask", /* PHOTOMETRIC_MASK */ + "separated", /* PHOTOMETRIC_SEPARATED */ + "YCbCr", /* PHOTOMETRIC_YCBCR */ + "7 (0x7)", + "CIE L*a*b*", /* PHOTOMETRIC_CIELAB */ +}; +#define NPHOTONAMES (sizeof (photoNames) / sizeof (photoNames[0])) + +static const char *orientNames[] = { + "0 (0x0)", + "row 0 top, col 0 lhs", /* ORIENTATION_TOPLEFT */ + "row 0 top, col 0 rhs", /* ORIENTATION_TOPRIGHT */ + "row 0 bottom, col 0 rhs", /* ORIENTATION_BOTRIGHT */ + "row 0 bottom, col 0 lhs", /* ORIENTATION_BOTLEFT */ + "row 0 lhs, col 0 top", /* ORIENTATION_LEFTTOP */ + "row 0 rhs, col 0 top", /* ORIENTATION_RIGHTTOP */ + "row 0 rhs, col 0 bottom", /* ORIENTATION_RIGHTBOT */ + "row 0 lhs, col 0 bottom", /* ORIENTATION_LEFTBOT */ +}; +#define NORIENTNAMES (sizeof (orientNames) / sizeof (orientNames[0])) + +static void +_TIFFPrintField(FILE* fd, const TIFFFieldInfo *fip, + uint32 value_count, void *raw_data) +{ + uint32 j; + + fprintf(fd, " %s: ", fip->field_name); + + for(j = 0; j < value_count; j++) { + if(fip->field_type == TIFF_BYTE) + fprintf(fd, "%u", ((uint8 *) raw_data)[j]); + else if(fip->field_type == TIFF_UNDEFINED) + fprintf(fd, "0x%x", + (unsigned int) ((unsigned char *) raw_data)[j]); + else if(fip->field_type == TIFF_SBYTE) + fprintf(fd, "%d", ((int8 *) raw_data)[j]); + else if(fip->field_type == TIFF_SHORT) + fprintf(fd, "%u", ((uint16 *) raw_data)[j]); + else if(fip->field_type == TIFF_SSHORT) + fprintf(fd, "%d", ((int16 *) raw_data)[j]); + else if(fip->field_type == TIFF_LONG) + fprintf(fd, "%lu", + (unsigned long)((uint32 *) raw_data)[j]); + else if(fip->field_type == TIFF_SLONG) + fprintf(fd, "%ld", (long)((int32 *) raw_data)[j]); + else if(fip->field_type == TIFF_RATIONAL + || fip->field_type == TIFF_SRATIONAL + || fip->field_type == TIFF_FLOAT) + fprintf(fd, "%f", ((float *) raw_data)[j]); + else if(fip->field_type == TIFF_IFD) + fprintf(fd, "0x%ulx", ((uint32 *) raw_data)[j]); + else if(fip->field_type == TIFF_ASCII) { + fprintf(fd, "%s", (char *) raw_data); + break; + } + else if(fip->field_type == TIFF_DOUBLE) + fprintf(fd, "%f", ((double *) raw_data)[j]); + else if(fip->field_type == TIFF_FLOAT) + fprintf(fd, "%f", ((float *)raw_data)[j]); + else { + fprintf(fd, "<unsupported data type in TIFFPrint>"); + break; + } + + if(j < value_count - 1) + fprintf(fd, ","); + } + + fprintf(fd, "\n"); +} + +static int +_TIFFPrettyPrintField(TIFF* tif, FILE* fd, ttag_t tag, + uint32 value_count, void *raw_data) +{ + TIFFDirectory *td = &tif->tif_dir; + + switch (tag) + { + case TIFFTAG_INKSET: + fprintf(fd, " Ink Set: "); + switch (*((uint16*)raw_data)) { + case INKSET_CMYK: + fprintf(fd, "CMYK\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + *((uint16*)raw_data), + *((uint16*)raw_data)); + break; + } + return 1; + case TIFFTAG_DOTRANGE: + fprintf(fd, " Dot Range: %u-%u\n", + ((uint16*)raw_data)[0], ((uint16*)raw_data)[1]); + return 1; + case TIFFTAG_WHITEPOINT: + fprintf(fd, " White Point: %g-%g\n", + ((float *)raw_data)[0], ((float *)raw_data)[1]); return 1; + case TIFFTAG_REFERENCEBLACKWHITE: + { + uint16 i; + + fprintf(fd, " Reference Black/White:\n"); + for (i = 0; i < 3; i++) + fprintf(fd, " %2d: %5g %5g\n", i, + ((float *)raw_data)[2*i+0], + ((float *)raw_data)[2*i+1]); + return 1; + } + case TIFFTAG_XMLPACKET: + { + uint32 i; + + fprintf(fd, " XMLPacket (XMP Metadata):\n" ); + for(i = 0; i < value_count; i++) + fputc(((char *)raw_data)[i], fd); + fprintf( fd, "\n" ); + return 1; + } + case TIFFTAG_RICHTIFFIPTC: + /* + * XXX: for some weird reason RichTIFFIPTC tag + * defined as array of LONG values. + */ + fprintf(fd, + " RichTIFFIPTC Data: <present>, %lu bytes\n", + (unsigned long) value_count * 4); + return 1; + case TIFFTAG_PHOTOSHOP: + fprintf(fd, " Photoshop Data: <present>, %lu bytes\n", + (unsigned long) value_count); + return 1; + case TIFFTAG_ICCPROFILE: + fprintf(fd, " ICC Profile: <present>, %lu bytes\n", + (unsigned long) value_count); + return 1; + case TIFFTAG_STONITS: + fprintf(fd, + " Sample to Nits conversion factor: %.4e\n", + *((double*)raw_data)); + return 1; + } + + return 0; +} + +/* + * Print the contents of the current directory + * to the specified stdio file stream. + */ +void +TIFFPrintDirectory(TIFF* tif, FILE* fd, long flags) +{ + TIFFDirectory *td = &tif->tif_dir; + char *sep; + uint16 i; + long l, n; + + fprintf(fd, "TIFF Directory at offset 0x%lx (%lu)\n", + (unsigned long)tif->tif_diroff, (unsigned long)tif->tif_diroff); + if (TIFFFieldSet(tif,FIELD_SUBFILETYPE)) { + fprintf(fd, " Subfile Type:"); + sep = " "; + if (td->td_subfiletype & FILETYPE_REDUCEDIMAGE) { + fprintf(fd, "%sreduced-resolution image", sep); + sep = "/"; + } + if (td->td_subfiletype & FILETYPE_PAGE) { + fprintf(fd, "%smulti-page document", sep); + sep = "/"; + } + if (td->td_subfiletype & FILETYPE_MASK) + fprintf(fd, "%stransparency mask", sep); + fprintf(fd, " (%lu = 0x%lx)\n", + (long) td->td_subfiletype, (long) td->td_subfiletype); + } + if (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS)) { + fprintf(fd, " Image Width: %lu Image Length: %lu", + (unsigned long) td->td_imagewidth, (unsigned long) td->td_imagelength); + if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH)) + fprintf(fd, " Image Depth: %lu", + (unsigned long) td->td_imagedepth); + fprintf(fd, "\n"); + } + if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS)) { + fprintf(fd, " Tile Width: %lu Tile Length: %lu", + (unsigned long) td->td_tilewidth, (unsigned long) td->td_tilelength); + if (TIFFFieldSet(tif,FIELD_TILEDEPTH)) + fprintf(fd, " Tile Depth: %lu", + (unsigned long) td->td_tiledepth); + fprintf(fd, "\n"); + } + if (TIFFFieldSet(tif,FIELD_RESOLUTION)) { + fprintf(fd, " Resolution: %g, %g", + td->td_xresolution, td->td_yresolution); + if (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT)) { + switch (td->td_resolutionunit) { + case RESUNIT_NONE: + fprintf(fd, " (unitless)"); + break; + case RESUNIT_INCH: + fprintf(fd, " pixels/inch"); + break; + case RESUNIT_CENTIMETER: + fprintf(fd, " pixels/cm"); + break; + default: + fprintf(fd, " (unit %u = 0x%x)", + td->td_resolutionunit, + td->td_resolutionunit); + break; + } + } + fprintf(fd, "\n"); + } + if (TIFFFieldSet(tif,FIELD_POSITION)) + fprintf(fd, " Position: %g, %g\n", + td->td_xposition, td->td_yposition); + if (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) + fprintf(fd, " Bits/Sample: %u\n", td->td_bitspersample); + if (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT)) { + fprintf(fd, " Sample Format: "); + switch (td->td_sampleformat) { + case SAMPLEFORMAT_VOID: + fprintf(fd, "void\n"); + break; + case SAMPLEFORMAT_INT: + fprintf(fd, "signed integer\n"); + break; + case SAMPLEFORMAT_UINT: + fprintf(fd, "unsigned integer\n"); + break; + case SAMPLEFORMAT_IEEEFP: + fprintf(fd, "IEEE floating point\n"); + break; + case SAMPLEFORMAT_COMPLEXINT: + fprintf(fd, "complex signed integer\n"); + break; + case SAMPLEFORMAT_COMPLEXIEEEFP: + fprintf(fd, "complex IEEE floating point\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + td->td_sampleformat, td->td_sampleformat); + break; + } + } + if (TIFFFieldSet(tif,FIELD_COMPRESSION)) { + const TIFFCodec* c = TIFFFindCODEC(td->td_compression); + fprintf(fd, " Compression Scheme: "); + if (c) + fprintf(fd, "%s\n", c->name); + else + fprintf(fd, "%u (0x%x)\n", + td->td_compression, td->td_compression); + } + if (TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) { + fprintf(fd, " Photometric Interpretation: "); + if (td->td_photometric < NPHOTONAMES) + fprintf(fd, "%s\n", photoNames[td->td_photometric]); + else { + switch (td->td_photometric) { + case PHOTOMETRIC_LOGL: + fprintf(fd, "CIE Log2(L)\n"); + break; + case PHOTOMETRIC_LOGLUV: + fprintf(fd, "CIE Log2(L) (u',v')\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + td->td_photometric, td->td_photometric); + break; + } + } + } + if (TIFFFieldSet(tif,FIELD_EXTRASAMPLES) && td->td_extrasamples) { + fprintf(fd, " Extra Samples: %u<", td->td_extrasamples); + sep = ""; + for (i = 0; i < td->td_extrasamples; i++) { + switch (td->td_sampleinfo[i]) { + case EXTRASAMPLE_UNSPECIFIED: + fprintf(fd, "%sunspecified", sep); + break; + case EXTRASAMPLE_ASSOCALPHA: + fprintf(fd, "%sassoc-alpha", sep); + break; + case EXTRASAMPLE_UNASSALPHA: + fprintf(fd, "%sunassoc-alpha", sep); + break; + default: + fprintf(fd, "%s%u (0x%x)", sep, + td->td_sampleinfo[i], td->td_sampleinfo[i]); + break; + } + sep = ", "; + } + fprintf(fd, ">\n"); + } + if (TIFFFieldSet(tif,FIELD_INKNAMES)) { + char* cp; + fprintf(fd, " Ink Names: "); + i = td->td_samplesperpixel; + sep = ""; + for (cp = td->td_inknames; i > 0; cp = strchr(cp,'\0')+1, i--) { + fputs(sep, fd); + _TIFFprintAscii(fd, cp); + sep = ", "; + } + fputs("\n", fd); + } + if (TIFFFieldSet(tif,FIELD_THRESHHOLDING)) { + fprintf(fd, " Thresholding: "); + switch (td->td_threshholding) { + case THRESHHOLD_BILEVEL: + fprintf(fd, "bilevel art scan\n"); + break; + case THRESHHOLD_HALFTONE: + fprintf(fd, "halftone or dithered scan\n"); + break; + case THRESHHOLD_ERRORDIFFUSE: + fprintf(fd, "error diffused\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + td->td_threshholding, td->td_threshholding); + break; + } + } + if (TIFFFieldSet(tif,FIELD_FILLORDER)) { + fprintf(fd, " FillOrder: "); + switch (td->td_fillorder) { + case FILLORDER_MSB2LSB: + fprintf(fd, "msb-to-lsb\n"); + break; + case FILLORDER_LSB2MSB: + fprintf(fd, "lsb-to-msb\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + td->td_fillorder, td->td_fillorder); + break; + } + } + if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING)) + { + /* + * For hacky reasons (see tif_jpeg.c - JPEGFixupTestSubsampling), + * we need to fetch this rather than trust what is in our + * structures. + */ + uint16 subsampling[2]; + + TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, + subsampling + 0, subsampling + 1 ); + fprintf(fd, " YCbCr Subsampling: %u, %u\n", + subsampling[0], subsampling[1] ); + } + if (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING)) { + fprintf(fd, " YCbCr Positioning: "); + switch (td->td_ycbcrpositioning) { + case YCBCRPOSITION_CENTERED: + fprintf(fd, "centered\n"); + break; + case YCBCRPOSITION_COSITED: + fprintf(fd, "cosited\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + td->td_ycbcrpositioning, td->td_ycbcrpositioning); + break; + } + } + if (TIFFFieldSet(tif,FIELD_HALFTONEHINTS)) + fprintf(fd, " Halftone Hints: light %u dark %u\n", + td->td_halftonehints[0], td->td_halftonehints[1]); + if (TIFFFieldSet(tif,FIELD_ORIENTATION)) { + fprintf(fd, " Orientation: "); + if (td->td_orientation < NORIENTNAMES) + fprintf(fd, "%s\n", orientNames[td->td_orientation]); + else + fprintf(fd, "%u (0x%x)\n", + td->td_orientation, td->td_orientation); + } + if (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) + fprintf(fd, " Samples/Pixel: %u\n", td->td_samplesperpixel); + if (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP)) { + fprintf(fd, " Rows/Strip: "); + if (td->td_rowsperstrip == (uint32) -1) + fprintf(fd, "(infinite)\n"); + else + fprintf(fd, "%lu\n", (unsigned long) td->td_rowsperstrip); + } + if (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE)) + fprintf(fd, " Min Sample Value: %u\n", td->td_minsamplevalue); + if (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE)) + fprintf(fd, " Max Sample Value: %u\n", td->td_maxsamplevalue); + if (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE)) + fprintf(fd, " SMin Sample Value: %g\n", + td->td_sminsamplevalue); + if (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE)) + fprintf(fd, " SMax Sample Value: %g\n", + td->td_smaxsamplevalue); + if (TIFFFieldSet(tif,FIELD_PLANARCONFIG)) { + fprintf(fd, " Planar Configuration: "); + switch (td->td_planarconfig) { + case PLANARCONFIG_CONTIG: + fprintf(fd, "single image plane\n"); + break; + case PLANARCONFIG_SEPARATE: + fprintf(fd, "separate image planes\n"); + break; + default: + fprintf(fd, "%u (0x%x)\n", + td->td_planarconfig, td->td_planarconfig); + break; + } + } + if (TIFFFieldSet(tif,FIELD_PAGENUMBER)) + fprintf(fd, " Page Number: %u-%u\n", + td->td_pagenumber[0], td->td_pagenumber[1]); + if (TIFFFieldSet(tif,FIELD_COLORMAP)) { + fprintf(fd, " Color Map: "); + if (flags & TIFFPRINT_COLORMAP) { + fprintf(fd, "\n"); + n = 1L<<td->td_bitspersample; + for (l = 0; l < n; l++) + fprintf(fd, " %5lu: %5u %5u %5u\n", + l, + td->td_colormap[0][l], + td->td_colormap[1][l], + td->td_colormap[2][l]); + } else + fprintf(fd, "(present)\n"); + } + if (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION)) { + fprintf(fd, " Transfer Function: "); + if (flags & TIFFPRINT_CURVES) { + fprintf(fd, "\n"); + n = 1L<<td->td_bitspersample; + for (l = 0; l < n; l++) { + fprintf(fd, " %2lu: %5u", + l, td->td_transferfunction[0][l]); + for (i = 1; i < td->td_samplesperpixel; i++) + fprintf(fd, " %5u", + td->td_transferfunction[i][l]); + fputc('\n', fd); + } + } else + fprintf(fd, "(present)\n"); + } + if (TIFFFieldSet(tif, FIELD_SUBIFD) && (td->td_subifd)) { + fprintf(fd, " SubIFD Offsets:"); + for (i = 0; i < td->td_nsubifd; i++) + fprintf(fd, " %5lu", (long) td->td_subifd[i]); + fputc('\n', fd); + } + + /* + ** Custom tag support. + */ + { + int i; + short count; + + count = (short) TIFFGetTagListCount(tif); + for(i = 0; i < count; i++) { + ttag_t tag = TIFFGetTagListEntry(tif, i); + const TIFFFieldInfo *fip; + uint32 value_count; + int mem_alloc = 0; + void *raw_data; + + fip = TIFFFieldWithTag(tif, tag); + if(fip == NULL) + continue; + + if(fip->field_passcount) { + if(TIFFGetField(tif, tag, &value_count, &raw_data) != 1) + continue; + } else { + if (fip->field_readcount == TIFF_VARIABLE + || fip->field_readcount == TIFF_VARIABLE2) + value_count = 1; + else if (fip->field_readcount == TIFF_SPP) + value_count = td->td_samplesperpixel; + else + value_count = fip->field_readcount; + if ((fip->field_type == TIFF_ASCII + || fip->field_readcount == TIFF_VARIABLE + || fip->field_readcount == TIFF_VARIABLE2 + || fip->field_readcount == TIFF_SPP + || value_count > 1) + && fip->field_tag != TIFFTAG_PAGENUMBER + && fip->field_tag != TIFFTAG_HALFTONEHINTS + && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING + && fip->field_tag != TIFFTAG_DOTRANGE) { + if(TIFFGetField(tif, tag, &raw_data) != 1) + continue; + } else if (fip->field_tag != TIFFTAG_PAGENUMBER + && fip->field_tag != TIFFTAG_HALFTONEHINTS + && fip->field_tag != TIFFTAG_YCBCRSUBSAMPLING + && fip->field_tag != TIFFTAG_DOTRANGE) { + raw_data = _TIFFmalloc( + _TIFFDataSize(fip->field_type) + * value_count); + mem_alloc = 1; + if(TIFFGetField(tif, tag, raw_data) != 1) { + _TIFFfree(raw_data); + continue; + } + } else { + /* + * XXX: Should be fixed and removed, see the + * notes related to TIFFTAG_PAGENUMBER, + * TIFFTAG_HALFTONEHINTS, + * TIFFTAG_YCBCRSUBSAMPLING and + * TIFFTAG_DOTRANGE tags in tif_dir.c. */ + char *tmp; + raw_data = _TIFFmalloc( + _TIFFDataSize(fip->field_type) + * value_count); + tmp = raw_data; + mem_alloc = 1; + if(TIFFGetField(tif, tag, tmp, + tmp + _TIFFDataSize(fip->field_type)) != 1) { + _TIFFfree(raw_data); + continue; + } + } + } + + /* + * Catch the tags which needs to be specially handled and + * pretty print them. If tag not handled in + * _TIFFPrettyPrintField() fall down and print it as any other + * tag. + */ + if (_TIFFPrettyPrintField(tif, fd, tag, value_count, raw_data)) { + if(mem_alloc) + _TIFFfree(raw_data); + continue; + } + else + _TIFFPrintField(fd, fip, value_count, raw_data); + + if(mem_alloc) + _TIFFfree(raw_data); + } + } + + if (tif->tif_tagmethods.printdir) + (*tif->tif_tagmethods.printdir)(tif, fd, flags); + if ((flags & TIFFPRINT_STRIPS) && + TIFFFieldSet(tif,FIELD_STRIPOFFSETS)) { + tstrip_t s; + + fprintf(fd, " %lu %s:\n", + (long) td->td_nstrips, + isTiled(tif) ? "Tiles" : "Strips"); + for (s = 0; s < td->td_nstrips; s++) + fprintf(fd, " %3lu: [%8lu, %8lu]\n", + (unsigned long) s, + (unsigned long) td->td_stripoffset[s], + (unsigned long) td->td_stripbytecount[s]); + } +} + +void +_TIFFprintAscii(FILE* fd, const char* cp) +{ + for (; *cp != '\0'; cp++) { + const char* tp; + + if (isprint((int)*cp)) { + fputc(*cp, fd); + continue; + } + for (tp = "\tt\bb\rr\nn\vv"; *tp; tp++) + if (*tp++ == *cp) + break; + if (*tp) + fprintf(fd, "\\%c", *tp); + else + fprintf(fd, "\\%03o", *cp & 0xff); + } +} + +void +_TIFFprintAsciiTag(FILE* fd, const char* name, const char* value) +{ + fprintf(fd, " %s: \"", name); + _TIFFprintAscii(fd, value); + fprintf(fd, "\"\n"); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_read.c b/tiff/libtiff/tif_read.c new file mode 100644 index 0000000..8ac0ae6 --- /dev/null +++ b/tiff/libtiff/tif_read.c @@ -0,0 +1,750 @@ +/* $Id: tif_read.c,v 1.16.2.3 2010-06-09 14:32:47 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * Scanline-oriented Read Support + */ +#include "tiffiop.h" +#include <stdio.h> + + int TIFFFillStrip(TIFF*, tstrip_t); + int TIFFFillTile(TIFF*, ttile_t); +static int TIFFStartStrip(TIFF*, tstrip_t); +static int TIFFStartTile(TIFF*, ttile_t); +static int TIFFCheckRead(TIFF*, int); + +#define NOSTRIP ((tstrip_t) -1) /* undefined state */ +#define NOTILE ((ttile_t) -1) /* undefined state */ + +/* + * Seek to a random row+sample in a file. + */ +static int +TIFFSeek(TIFF* tif, uint32 row, tsample_t sample) +{ + register TIFFDirectory *td = &tif->tif_dir; + tstrip_t strip; + + if (row >= td->td_imagelength) { /* out of range */ + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Row out of range, max %lu", + (unsigned long) row, + (unsigned long) td->td_imagelength); + return (0); + } + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { + if (sample >= td->td_samplesperpixel) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Sample out of range, max %lu", + (unsigned long) sample, (unsigned long) td->td_samplesperpixel); + return (0); + } + strip = sample*td->td_stripsperimage + row/td->td_rowsperstrip; + } else + strip = row / td->td_rowsperstrip; + if (strip != tif->tif_curstrip) { /* different strip, refill */ + if (!TIFFFillStrip(tif, strip)) + return (0); + } else if (row < tif->tif_row) { + /* + * Moving backwards within the same strip: backup + * to the start and then decode forward (below). + * + * NB: If you're planning on lots of random access within a + * strip, it's better to just read and decode the entire + * strip, and then access the decoded data in a random fashion. + */ + if (!TIFFStartStrip(tif, strip)) + return (0); + } + if (row != tif->tif_row) { + /* + * Seek forward to the desired row. + */ + if (!(*tif->tif_seek)(tif, row - tif->tif_row)) + return (0); + tif->tif_row = row; + } + return (1); +} + +int +TIFFReadScanline(TIFF* tif, tdata_t buf, uint32 row, tsample_t sample) +{ + int e; + + if (!TIFFCheckRead(tif, 0)) + return (-1); + if( (e = TIFFSeek(tif, row, sample)) != 0) { + /* + * Decompress desired row into user buffer. + */ + e = (*tif->tif_decoderow) + (tif, (tidata_t) buf, tif->tif_scanlinesize, sample); + + /* we are now poised at the beginning of the next row */ + tif->tif_row = row + 1; + + if (e) + (*tif->tif_postdecode)(tif, (tidata_t) buf, + tif->tif_scanlinesize); + } + return (e > 0 ? 1 : -1); +} + +/* + * Read a strip of data and decompress the specified + * amount into the user-supplied buffer. + */ +tsize_t +TIFFReadEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t size) +{ + TIFFDirectory *td = &tif->tif_dir; + uint32 nrows; + tsize_t stripsize; + tstrip_t sep_strip, strips_per_sep; + + if (!TIFFCheckRead(tif, 0)) + return (-1); + if (strip >= td->td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%ld: Strip out of range, max %ld", + (long) strip, (long) td->td_nstrips); + return (-1); + } + /* + * Calculate the strip size according to the number of + * rows in the strip (check for truncated last strip on any + * of the separations). + */ + if( td->td_rowsperstrip >= td->td_imagelength ) + strips_per_sep = 1; + else + strips_per_sep = (td->td_imagelength+td->td_rowsperstrip-1) + / td->td_rowsperstrip; + + sep_strip = strip % strips_per_sep; + + if (sep_strip != strips_per_sep-1 || + (nrows = td->td_imagelength % td->td_rowsperstrip) == 0) + nrows = td->td_rowsperstrip; + + stripsize = TIFFVStripSize(tif, nrows); + if (size == (tsize_t) -1) + size = stripsize; + else if (size > stripsize) + size = stripsize; + if (TIFFFillStrip(tif, strip) + && (*tif->tif_decodestrip)(tif, (tidata_t) buf, size, + (tsample_t)(strip / td->td_stripsperimage)) > 0 ) { + (*tif->tif_postdecode)(tif, (tidata_t) buf, size); + return (size); + } else + return ((tsize_t) -1); +} + +static tsize_t +TIFFReadRawStrip1(TIFF* tif, + tstrip_t strip, tdata_t buf, tsize_t size, const char* module) +{ + TIFFDirectory *td = &tif->tif_dir; + + assert((tif->tif_flags&TIFF_NOREADRAW)==0); + if (!isMapped(tif)) { + tsize_t cc; + + if (!SeekOK(tif, td->td_stripoffset[strip])) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Seek error at scanline %lu, strip %lu", + tif->tif_name, + (unsigned long) tif->tif_row, (unsigned long) strip); + return (-1); + } + cc = TIFFReadFile(tif, buf, size); + if (cc != size) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Read error at scanline %lu; got %lu bytes, expected %lu", + tif->tif_name, + (unsigned long) tif->tif_row, + (unsigned long) cc, + (unsigned long) size); + return (-1); + } + } else { + if (td->td_stripoffset[strip] + size > tif->tif_size) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Read error at scanline %lu, strip %lu; got %lu bytes, expected %lu", + tif->tif_name, + (unsigned long) tif->tif_row, + (unsigned long) strip, + (unsigned long) tif->tif_size - td->td_stripoffset[strip], + (unsigned long) size); + return (-1); + } + _TIFFmemcpy(buf, tif->tif_base + td->td_stripoffset[strip], + size); + } + return (size); +} + +/* + * Read a strip of data from the file. + */ +tsize_t +TIFFReadRawStrip(TIFF* tif, tstrip_t strip, tdata_t buf, tsize_t size) +{ + static const char module[] = "TIFFReadRawStrip"; + TIFFDirectory *td = &tif->tif_dir; + /* + * FIXME: butecount should have tsize_t type, but for now libtiff + * defines tsize_t as a signed 32-bit integer and we are losing + * ability to read arrays larger than 2^31 bytes. So we are using + * uint32 instead of tsize_t here. + */ + uint32 bytecount; + + if (!TIFFCheckRead(tif, 0)) + return ((tsize_t) -1); + if (strip >= td->td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Strip out of range, max %lu", + (unsigned long) strip, + (unsigned long) td->td_nstrips); + return ((tsize_t) -1); + } + if (tif->tif_flags&TIFF_NOREADRAW) + { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression scheme does not support access to raw uncompressed data"); + return ((tsize_t) -1); + } + bytecount = td->td_stripbytecount[strip]; + if (bytecount <= 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Invalid strip byte count, strip %lu", + (unsigned long) bytecount, (unsigned long) strip); + return ((tsize_t) -1); + } + if (size != (tsize_t)-1 && (uint32)size < bytecount) + bytecount = size; + return (TIFFReadRawStrip1(tif, strip, buf, bytecount, module)); +} + +/* + * Read the specified strip and setup for decoding. The data buffer is + * expanded, as necessary, to hold the strip's data. + */ +int +TIFFFillStrip(TIFF* tif, tstrip_t strip) +{ + static const char module[] = "TIFFFillStrip"; + TIFFDirectory *td = &tif->tif_dir; + + if ((tif->tif_flags&TIFF_NOREADRAW)==0) + { + /* + * FIXME: butecount should have tsize_t type, but for now + * libtiff defines tsize_t as a signed 32-bit integer and we + * are losing ability to read arrays larger than 2^31 bytes. + * So we are using uint32 instead of tsize_t here. + */ + uint32 bytecount = td->td_stripbytecount[strip]; + if (bytecount <= 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Invalid strip byte count %lu, strip %lu", + tif->tif_name, (unsigned long) bytecount, + (unsigned long) strip); + return (0); + } + if (isMapped(tif) && + (isFillOrder(tif, td->td_fillorder) + || (tif->tif_flags & TIFF_NOBITREV))) { + /* + * The image is mapped into memory and we either don't + * need to flip bits or the compression routine is + * going to handle this operation itself. In this + * case, avoid copying the raw data and instead just + * reference the data from the memory mapped file + * image. This assumes that the decompression + * routines do not modify the contents of the raw data + * buffer (if they try to, the application will get a + * fault since the file is mapped read-only). + */ + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) + _TIFFfree(tif->tif_rawdata); + tif->tif_flags &= ~TIFF_MYBUFFER; + /* + * We must check for overflow, potentially causing + * an OOB read. Instead of simple + * + * td->td_stripoffset[strip]+bytecount > tif->tif_size + * + * comparison (which can overflow) we do the following + * two comparisons: + */ + if (bytecount > tif->tif_size || + td->td_stripoffset[strip] > tif->tif_size - bytecount) { + /* + * This error message might seem strange, but + * it's what would happen if a read were done + * instead. + */ + TIFFErrorExt(tif->tif_clientdata, module, + + "%s: Read error on strip %lu; " + "got %lu bytes, expected %lu", + tif->tif_name, (unsigned long) strip, + (unsigned long) tif->tif_size - td->td_stripoffset[strip], + (unsigned long) bytecount); + tif->tif_curstrip = NOSTRIP; + return (0); + } + tif->tif_rawdatasize = bytecount; + tif->tif_rawdata = tif->tif_base + td->td_stripoffset[strip]; + } else { + /* + * Expand raw data buffer, if needed, to hold data + * strip coming from file (perhaps should set upper + * bound on the size of a buffer we'll use?). + */ + if (bytecount > (uint32)tif->tif_rawdatasize) { + tif->tif_curstrip = NOSTRIP; + if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { + TIFFErrorExt(tif->tif_clientdata, + module, + "%s: Data buffer too small to hold strip %lu", + tif->tif_name, + (unsigned long) strip); + return (0); + } + if (!TIFFReadBufferSetup(tif, 0, + TIFFroundup(bytecount, 1024))) + return (0); + } + if ((uint32)TIFFReadRawStrip1(tif, strip, + (unsigned char *)tif->tif_rawdata, + bytecount, module) != bytecount) + return (0); + if (!isFillOrder(tif, td->td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits(tif->tif_rawdata, bytecount); + } + } + return (TIFFStartStrip(tif, strip)); +} + +/* + * Tile-oriented Read Support + * Contributed by Nancy Cam (Silicon Graphics). + */ + +/* + * Read and decompress a tile of data. The + * tile is selected by the (x,y,z,s) coordinates. + */ +tsize_t +TIFFReadTile(TIFF* tif, + tdata_t buf, uint32 x, uint32 y, uint32 z, tsample_t s) +{ + if (!TIFFCheckRead(tif, 1) || !TIFFCheckTile(tif, x, y, z, s)) + return (-1); + return (TIFFReadEncodedTile(tif, + TIFFComputeTile(tif, x, y, z, s), buf, (tsize_t) -1)); +} + +/* + * Read a tile of data and decompress the specified + * amount into the user-supplied buffer. + */ +tsize_t +TIFFReadEncodedTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t tilesize = tif->tif_tilesize; + + if (!TIFFCheckRead(tif, 1)) + return (-1); + if (tile >= td->td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%ld: Tile out of range, max %ld", + (long) tile, (unsigned long) td->td_nstrips); + return (-1); + } + if (size == (tsize_t) -1) + size = tilesize; + else if (size > tilesize) + size = tilesize; + if (TIFFFillTile(tif, tile) && (*tif->tif_decodetile)(tif, + (tidata_t) buf, size, (tsample_t)(tile/td->td_stripsperimage))) { + (*tif->tif_postdecode)(tif, (tidata_t) buf, size); + return (size); + } else + return (-1); +} + +static tsize_t +TIFFReadRawTile1(TIFF* tif, + ttile_t tile, tdata_t buf, tsize_t size, const char* module) +{ + TIFFDirectory *td = &tif->tif_dir; + + assert((tif->tif_flags&TIFF_NOREADRAW)==0); + if (!isMapped(tif)) { + tsize_t cc; + + if (!SeekOK(tif, td->td_stripoffset[tile])) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Seek error at row %ld, col %ld, tile %ld", + tif->tif_name, + (long) tif->tif_row, + (long) tif->tif_col, + (long) tile); + return ((tsize_t) -1); + } + cc = TIFFReadFile(tif, buf, size); + if (cc != size) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Read error at row %ld, col %ld; got %lu bytes, expected %lu", + tif->tif_name, + (long) tif->tif_row, + (long) tif->tif_col, + (unsigned long) cc, + (unsigned long) size); + return ((tsize_t) -1); + } + } else { + if (td->td_stripoffset[tile] + size > tif->tif_size) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Read error at row %ld, col %ld, tile %ld; got %lu bytes, expected %lu", + tif->tif_name, + (long) tif->tif_row, + (long) tif->tif_col, + (long) tile, + (unsigned long) tif->tif_size - td->td_stripoffset[tile], + (unsigned long) size); + return ((tsize_t) -1); + } + _TIFFmemcpy(buf, tif->tif_base + td->td_stripoffset[tile], size); + } + return (size); +} + +/* + * Read a tile of data from the file. + */ +tsize_t +TIFFReadRawTile(TIFF* tif, ttile_t tile, tdata_t buf, tsize_t size) +{ + static const char module[] = "TIFFReadRawTile"; + TIFFDirectory *td = &tif->tif_dir; + /* + * FIXME: butecount should have tsize_t type, but for now libtiff + * defines tsize_t as a signed 32-bit integer and we are losing + * ability to read arrays larger than 2^31 bytes. So we are using + * uint32 instead of tsize_t here. + */ + uint32 bytecount; + + if (!TIFFCheckRead(tif, 1)) + return ((tsize_t) -1); + if (tile >= td->td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Tile out of range, max %lu", + (unsigned long) tile, (unsigned long) td->td_nstrips); + return ((tsize_t) -1); + } + if (tif->tif_flags&TIFF_NOREADRAW) + { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Compression scheme does not support access to raw uncompressed data"); + return ((tsize_t) -1); + } + bytecount = td->td_stripbytecount[tile]; + if (size != (tsize_t) -1 && (uint32)size < bytecount) + bytecount = size; + return (TIFFReadRawTile1(tif, tile, buf, bytecount, module)); +} + +/* + * Read the specified tile and setup for decoding. The data buffer is + * expanded, as necessary, to hold the tile's data. + */ +int +TIFFFillTile(TIFF* tif, ttile_t tile) +{ + static const char module[] = "TIFFFillTile"; + TIFFDirectory *td = &tif->tif_dir; + + if ((tif->tif_flags&TIFF_NOREADRAW)==0) + { + /* + * FIXME: butecount should have tsize_t type, but for now + * libtiff defines tsize_t as a signed 32-bit integer and we + * are losing ability to read arrays larger than 2^31 bytes. + * So we are using uint32 instead of tsize_t here. + */ + uint32 bytecount = td->td_stripbytecount[tile]; + if (bytecount <= 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Invalid tile byte count, tile %lu", + (unsigned long) bytecount, (unsigned long) tile); + return (0); + } + if (isMapped(tif) && + (isFillOrder(tif, td->td_fillorder) + || (tif->tif_flags & TIFF_NOBITREV))) { + /* + * The image is mapped into memory and we either don't + * need to flip bits or the compression routine is + * going to handle this operation itself. In this + * case, avoid copying the raw data and instead just + * reference the data from the memory mapped file + * image. This assumes that the decompression + * routines do not modify the contents of the raw data + * buffer (if they try to, the application will get a + * fault since the file is mapped read-only). + */ + if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) + _TIFFfree(tif->tif_rawdata); + tif->tif_flags &= ~TIFF_MYBUFFER; + /* + * We must check for overflow, potentially causing + * an OOB read. Instead of simple + * + * td->td_stripoffset[tile]+bytecount > tif->tif_size + * + * comparison (which can overflow) we do the following + * two comparisons: + */ + if (bytecount > tif->tif_size || + td->td_stripoffset[tile] > tif->tif_size - bytecount) { + tif->tif_curtile = NOTILE; + return (0); + } + tif->tif_rawdatasize = bytecount; + tif->tif_rawdata = + tif->tif_base + td->td_stripoffset[tile]; + } else { + /* + * Expand raw data buffer, if needed, to hold data + * tile coming from file (perhaps should set upper + * bound on the size of a buffer we'll use?). + */ + if (bytecount > (uint32)tif->tif_rawdatasize) { + tif->tif_curtile = NOTILE; + if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { + TIFFErrorExt(tif->tif_clientdata, + module, + "%s: Data buffer too small to hold tile %ld", + tif->tif_name, + (long) tile); + return (0); + } + if (!TIFFReadBufferSetup(tif, 0, + TIFFroundup(bytecount, 1024))) + return (0); + } + if ((uint32)TIFFReadRawTile1(tif, tile, + (unsigned char *)tif->tif_rawdata, + bytecount, module) != bytecount) + return (0); + if (!isFillOrder(tif, td->td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits(tif->tif_rawdata, bytecount); + } + } + return (TIFFStartTile(tif, tile)); +} + +/* + * Setup the raw data buffer in preparation for + * reading a strip of raw data. If the buffer + * is specified as zero, then a buffer of appropriate + * size is allocated by the library. Otherwise, + * the client must guarantee that the buffer is + * large enough to hold any individual strip of + * raw data. + */ +int +TIFFReadBufferSetup(TIFF* tif, tdata_t bp, tsize_t size) +{ + static const char module[] = "TIFFReadBufferSetup"; + + assert((tif->tif_flags&TIFF_NOREADRAW)==0); + if (tif->tif_rawdata) { + if (tif->tif_flags & TIFF_MYBUFFER) + _TIFFfree(tif->tif_rawdata); + tif->tif_rawdata = NULL; + } + + if (bp) { + tif->tif_rawdatasize = size; + tif->tif_rawdata = (tidata_t) bp; + tif->tif_flags &= ~TIFF_MYBUFFER; + } else { + tif->tif_rawdatasize = TIFFroundup(size, 1024); + if (tif->tif_rawdatasize > 0) + tif->tif_rawdata = (tidata_t) _TIFFmalloc(tif->tif_rawdatasize); + tif->tif_flags |= TIFF_MYBUFFER; + } + if ((tif->tif_rawdata == NULL) || (tif->tif_rawdatasize == 0)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: No space for data buffer at scanline %ld", + tif->tif_name, (long) tif->tif_row); + tif->tif_rawdatasize = 0; + return (0); + } + return (1); +} + +/* + * Set state to appear as if a + * strip has just been read in. + */ +static int +TIFFStartStrip(TIFF* tif, tstrip_t strip) +{ + TIFFDirectory *td = &tif->tif_dir; + + if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { + if (!(*tif->tif_setupdecode)(tif)) + return (0); + tif->tif_flags |= TIFF_CODERSETUP; + } + tif->tif_curstrip = strip; + tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; + if (tif->tif_flags&TIFF_NOREADRAW) + { + tif->tif_rawcp = NULL; + tif->tif_rawcc = 0; + } + else + { + tif->tif_rawcp = tif->tif_rawdata; + tif->tif_rawcc = td->td_stripbytecount[strip]; + } + return ((*tif->tif_predecode)(tif, + (tsample_t)(strip / td->td_stripsperimage))); +} + +/* + * Set state to appear as if a + * tile has just been read in. + */ +static int +TIFFStartTile(TIFF* tif, ttile_t tile) +{ + TIFFDirectory *td = &tif->tif_dir; + + if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { + if (!(*tif->tif_setupdecode)(tif)) + return (0); + tif->tif_flags |= TIFF_CODERSETUP; + } + tif->tif_curtile = tile; + tif->tif_row = + (tile % TIFFhowmany(td->td_imagewidth, td->td_tilewidth)) * + td->td_tilelength; + tif->tif_col = + (tile % TIFFhowmany(td->td_imagelength, td->td_tilelength)) * + td->td_tilewidth; + if (tif->tif_flags&TIFF_NOREADRAW) + { + tif->tif_rawcp = NULL; + tif->tif_rawcc = 0; + } + else + { + tif->tif_rawcp = tif->tif_rawdata; + tif->tif_rawcc = td->td_stripbytecount[tile]; + } + return ((*tif->tif_predecode)(tif, + (tsample_t)(tile/td->td_stripsperimage))); +} + +static int +TIFFCheckRead(TIFF* tif, int tiles) +{ + if (tif->tif_mode == O_WRONLY) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "File not open for reading"); + return (0); + } + if (tiles ^ isTiled(tif)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, tiles ? + "Can not read tiles from a stripped image" : + "Can not read scanlines from a tiled image"); + return (0); + } + return (1); +} + +void +_TIFFNoPostDecode(TIFF* tif, tidata_t buf, tsize_t cc) +{ + (void) tif; (void) buf; (void) cc; +} + +void +_TIFFSwab16BitData(TIFF* tif, tidata_t buf, tsize_t cc) +{ + (void) tif; + assert((cc & 1) == 0); + TIFFSwabArrayOfShort((uint16*) buf, cc/2); +} + +void +_TIFFSwab24BitData(TIFF* tif, tidata_t buf, tsize_t cc) +{ + (void) tif; + assert((cc % 3) == 0); + TIFFSwabArrayOfTriples((uint8*) buf, cc/3); +} + +void +_TIFFSwab32BitData(TIFF* tif, tidata_t buf, tsize_t cc) +{ + (void) tif; + assert((cc & 3) == 0); + TIFFSwabArrayOfLong((uint32*) buf, cc/4); +} + +void +_TIFFSwab64BitData(TIFF* tif, tidata_t buf, tsize_t cc) +{ + (void) tif; + assert((cc & 7) == 0); + TIFFSwabArrayOfDouble((double*) buf, cc/8); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_stream.cxx b/tiff/libtiff/tif_stream.cxx new file mode 100644 index 0000000..2a2351b --- /dev/null +++ b/tiff/libtiff/tif_stream.cxx @@ -0,0 +1,295 @@ +/* $Id: tif_stream.cxx,v 1.6.2.1 2009-01-01 00:10:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1996 Sam Leffler + * Copyright (c) 1991-1996 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library UNIX-specific Routines. + */ +#include "tiffiop.h" +#include <iostream> + +#ifndef __VMS +using namespace std; +#endif + +class tiffis_data +{ + public: + + istream *myIS; + long myStreamStartPos; +}; + +class tiffos_data +{ + public: + + ostream *myOS; + long myStreamStartPos; +}; + +static tsize_t +_tiffosReadProc(thandle_t, tdata_t, tsize_t) +{ + return 0; +} + +static tsize_t +_tiffisReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + tiffis_data *data = (tiffis_data *)fd; + + data->myIS->read((char *)buf, (int)size); + + return data->myIS->gcount(); +} + +static tsize_t +_tiffosWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + tiffos_data *data = (tiffos_data *)fd; + ostream *os = data->myOS; + int pos = os->tellp(); + + os->write((const char *)buf, size); + + return ((int)os->tellp()) - pos; +} + +static tsize_t +_tiffisWriteProc(thandle_t, tdata_t, tsize_t) +{ + return 0; +} + +static toff_t +_tiffosSeekProc(thandle_t fd, toff_t off, int whence) +{ + tiffos_data *data = (tiffos_data *)fd; + ostream *os = data->myOS; + + // if the stream has already failed, don't do anything + if( os->fail() ) + return os->tellp(); + + switch(whence) { + case SEEK_SET: + os->seekp(data->myStreamStartPos + off, ios::beg); + break; + case SEEK_CUR: + os->seekp(off, ios::cur); + break; + case SEEK_END: + os->seekp(off, ios::end); + break; + } + + // Attempt to workaround problems with seeking past the end of the + // stream. ofstream doesn't have a problem with this but + // ostrstream/ostringstream does. In that situation, add intermediate + // '\0' characters. + if( os->fail() ) { +#ifdef __VMS + int old_state; +#else + ios::iostate old_state; +#endif + toff_t origin=0; + + old_state = os->rdstate(); + // reset the fail bit or else tellp() won't work below + os->clear(os->rdstate() & ~ios::failbit); + switch( whence ) { + case SEEK_SET: + origin = data->myStreamStartPos; + break; + case SEEK_CUR: + origin = os->tellp(); + break; + case SEEK_END: + os->seekp(0, ios::end); + origin = os->tellp(); + break; + } + // restore original stream state + os->clear(old_state); + + // only do something if desired seek position is valid + if( origin + off > data->myStreamStartPos ) { + toff_t num_fill; + + // clear the fail bit + os->clear(os->rdstate() & ~ios::failbit); + + // extend the stream to the expected size + os->seekp(0, ios::end); + num_fill = origin + off - (toff_t)os->tellp(); + for( toff_t i = 0; i < num_fill; i++ ) + os->put('\0'); + + // retry the seek + os->seekp(origin + off, ios::beg); + } + } + + return os->tellp(); +} + +static toff_t +_tiffisSeekProc(thandle_t fd, toff_t off, int whence) +{ + tiffis_data *data = (tiffis_data *)fd; + + switch(whence) { + case SEEK_SET: + data->myIS->seekg(data->myStreamStartPos + off, ios::beg); + break; + case SEEK_CUR: + data->myIS->seekg(off, ios::cur); + break; + case SEEK_END: + data->myIS->seekg(off, ios::end); + break; + } + + return ((long)data->myIS->tellg()) - data->myStreamStartPos; +} + +static toff_t +_tiffosSizeProc(thandle_t fd) +{ + tiffos_data *data = (tiffos_data *)fd; + ostream *os = data->myOS; + toff_t pos = os->tellp(); + toff_t len; + + os->seekp(0, ios::end); + len = os->tellp(); + os->seekp(pos); + + return len; +} + +static toff_t +_tiffisSizeProc(thandle_t fd) +{ + tiffis_data *data = (tiffis_data *)fd; + int pos = data->myIS->tellg(); + int len; + + data->myIS->seekg(0, ios::end); + len = data->myIS->tellg(); + data->myIS->seekg(pos); + + return len; +} + +static int +_tiffosCloseProc(thandle_t fd) +{ + // Our stream was not allocated by us, so it shouldn't be closed by us. + delete (tiffos_data *)fd; + return 0; +} + +static int +_tiffisCloseProc(thandle_t fd) +{ + // Our stream was not allocated by us, so it shouldn't be closed by us. + delete (tiffis_data *)fd; + return 0; +} + +static int +_tiffDummyMapProc(thandle_t , tdata_t* , toff_t* ) +{ + return (0); +} + +static void +_tiffDummyUnmapProc(thandle_t , tdata_t , toff_t ) +{ +} + +/* + * Open a TIFF file descriptor for read/writing. + */ +static TIFF* +_tiffStreamOpen(const char* name, const char* mode, void *fd) +{ + TIFF* tif; + + if( strchr(mode, 'w') ) { + tiffos_data *data = new tiffos_data; + data->myOS = (ostream *)fd; + data->myStreamStartPos = data->myOS->tellp(); + + // Open for writing. + tif = TIFFClientOpen(name, mode, + (thandle_t) data, + _tiffosReadProc, _tiffosWriteProc, + _tiffosSeekProc, _tiffosCloseProc, + _tiffosSizeProc, + _tiffDummyMapProc, _tiffDummyUnmapProc); + } else { + tiffis_data *data = new tiffis_data; + data->myIS = (istream *)fd; + data->myStreamStartPos = data->myIS->tellg(); + // Open for reading. + tif = TIFFClientOpen(name, mode, + (thandle_t) data, + _tiffisReadProc, _tiffisWriteProc, + _tiffisSeekProc, _tiffisCloseProc, + _tiffisSizeProc, + _tiffDummyMapProc, _tiffDummyUnmapProc); + } + + return (tif); +} + +TIFF* +TIFFStreamOpen(const char* name, ostream *os) +{ + // If os is either a ostrstream or ostringstream, and has no data + // written to it yet, then tellp() will return -1 which will break us. + // We workaround this by writing out a dummy character and + // then seek back to the beginning. + if( !os->fail() && (int)os->tellp() < 0 ) { + *os << '\0'; + os->seekp(0); + } + + // NB: We don't support mapped files with streams so add 'm' + return _tiffStreamOpen(name, "wm", os); +} + +TIFF* +TIFFStreamOpen(const char* name, istream *is) +{ + // NB: We don't support mapped files with streams so add 'm' + return _tiffStreamOpen(name, "rm", is); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/libtiff/tif_strip.c b/tiff/libtiff/tif_strip.c new file mode 100644 index 0000000..63dec6b --- /dev/null +++ b/tiff/libtiff/tif_strip.c @@ -0,0 +1,370 @@ +/* $Id: tif_strip.c,v 1.19.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1991-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Strip-organized Image Support Routines. + */ +#include "tiffiop.h" + +static uint32 +summarize(TIFF* tif, size_t summand1, size_t summand2, const char* where) +{ + /* + * XXX: We are using casting to uint32 here, bacause sizeof(size_t) + * may be larger than sizeof(uint32) on 64-bit architectures. + */ + uint32 bytes = summand1 + summand2; + + if (bytes - summand1 != summand2) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Integer overflow in %s", where); + bytes = 0; + } + + return (bytes); +} + +static uint32 +multiply(TIFF* tif, size_t nmemb, size_t elem_size, const char* where) +{ + uint32 bytes = nmemb * elem_size; + + if (elem_size && bytes / elem_size != nmemb) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Integer overflow in %s", where); + bytes = 0; + } + + return (bytes); +} + +/* + * Compute which strip a (row,sample) value is in. + */ +tstrip_t +TIFFComputeStrip(TIFF* tif, uint32 row, tsample_t sample) +{ + TIFFDirectory *td = &tif->tif_dir; + tstrip_t strip; + + strip = row / td->td_rowsperstrip; + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { + if (sample >= td->td_samplesperpixel) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Sample out of range, max %lu", + (unsigned long) sample, (unsigned long) td->td_samplesperpixel); + return ((tstrip_t) 0); + } + strip += sample*td->td_stripsperimage; + } + return (strip); +} + +/* + * Compute how many strips are in an image. + */ +tstrip_t +TIFFNumberOfStrips(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tstrip_t nstrips; + + nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 : + TIFFhowmany(td->td_imagelength, td->td_rowsperstrip)); + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) + nstrips = multiply(tif, nstrips, td->td_samplesperpixel, + "TIFFNumberOfStrips"); + return (nstrips); +} + +/* + * Compute the # bytes in a variable height, row-aligned strip. + */ +tsize_t +TIFFVStripSize(TIFF* tif, uint32 nrows) +{ + TIFFDirectory *td = &tif->tif_dir; + + if (nrows == (uint32) -1) + nrows = td->td_imagelength; + if (td->td_planarconfig == PLANARCONFIG_CONTIG && + td->td_photometric == PHOTOMETRIC_YCBCR && + !isUpSampled(tif)) { + /* + * Packed YCbCr data contain one Cb+Cr for every + * HorizontalSampling*VerticalSampling Y values. + * Must also roundup width and height when calculating + * since images that are not a multiple of the + * horizontal/vertical subsampling area include + * YCbCr data for the extended image. + */ + uint16 ycbcrsubsampling[2]; + tsize_t w, scanline, samplingarea; + + TIFFGetField( tif, TIFFTAG_YCBCRSUBSAMPLING, + ycbcrsubsampling + 0, + ycbcrsubsampling + 1 ); + + samplingarea = ycbcrsubsampling[0]*ycbcrsubsampling[1]; + if (samplingarea == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Invalid YCbCr subsampling"); + return 0; + } + + w = TIFFroundup(td->td_imagewidth, ycbcrsubsampling[0]); + scanline = TIFFhowmany8(multiply(tif, w, td->td_bitspersample, + "TIFFVStripSize")); + nrows = TIFFroundup(nrows, ycbcrsubsampling[1]); + /* NB: don't need TIFFhowmany here 'cuz everything is rounded */ + scanline = multiply(tif, nrows, scanline, "TIFFVStripSize"); + return ((tsize_t) + summarize(tif, scanline, + multiply(tif, 2, scanline / samplingarea, + "TIFFVStripSize"), "TIFFVStripSize")); + } else + return ((tsize_t) multiply(tif, nrows, TIFFScanlineSize(tif), + "TIFFVStripSize")); +} + + +/* + * Compute the # bytes in a raw strip. + */ +tsize_t +TIFFRawStripSize(TIFF* tif, tstrip_t strip) +{ + TIFFDirectory* td = &tif->tif_dir; + tsize_t bytecount = td->td_stripbytecount[strip]; + + if (bytecount <= 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Invalid strip byte count, strip %lu", + (unsigned long) bytecount, (unsigned long) strip); + bytecount = (tsize_t) -1; + } + + return bytecount; +} + +/* + * Compute the # bytes in a (row-aligned) strip. + * + * Note that if RowsPerStrip is larger than the + * recorded ImageLength, then the strip size is + * truncated to reflect the actual space required + * to hold the strip. + */ +tsize_t +TIFFStripSize(TIFF* tif) +{ + TIFFDirectory* td = &tif->tif_dir; + uint32 rps = td->td_rowsperstrip; + if (rps > td->td_imagelength) + rps = td->td_imagelength; + return (TIFFVStripSize(tif, rps)); +} + +/* + * Compute a default strip size based on the image + * characteristics and a requested value. If the + * request is <1 then we choose a strip size according + * to certain heuristics. + */ +uint32 +TIFFDefaultStripSize(TIFF* tif, uint32 request) +{ + return (*tif->tif_defstripsize)(tif, request); +} + +uint32 +_TIFFDefaultStripSize(TIFF* tif, uint32 s) +{ + if ((int32) s < 1) { + /* + * If RowsPerStrip is unspecified, try to break the + * image up into strips that are approximately + * STRIP_SIZE_DEFAULT bytes long. + */ + tsize_t scanline = TIFFScanlineSize(tif); + s = (uint32)STRIP_SIZE_DEFAULT / (scanline == 0 ? 1 : scanline); + if (s == 0) /* very wide images */ + s = 1; + } + return (s); +} + +/* + * Return the number of bytes to read/write in a call to + * one of the scanline-oriented i/o routines. Note that + * this number may be 1/samples-per-pixel if data is + * stored as separate planes. + */ +tsize_t +TIFFScanlineSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t scanline; + + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + if (td->td_photometric == PHOTOMETRIC_YCBCR + && !isUpSampled(tif)) { + uint16 ycbcrsubsampling[2]; + + TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, + ycbcrsubsampling + 0, + ycbcrsubsampling + 1); + + if (ycbcrsubsampling[0] == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Invalid YCbCr subsampling"); + return 0; + } + + scanline = TIFFroundup(td->td_imagewidth, + ycbcrsubsampling[0]); + scanline = TIFFhowmany8(multiply(tif, scanline, + td->td_bitspersample, + "TIFFScanlineSize")); + return ((tsize_t) + summarize(tif, scanline, + multiply(tif, 2, + scanline / ycbcrsubsampling[0], + "TIFFVStripSize"), + "TIFFVStripSize")); + } else { + scanline = multiply(tif, td->td_imagewidth, + td->td_samplesperpixel, + "TIFFScanlineSize"); + } + } else + scanline = td->td_imagewidth; + return ((tsize_t) TIFFhowmany8(multiply(tif, scanline, + td->td_bitspersample, + "TIFFScanlineSize"))); +} + +/* + * Some stuff depends on this older version of TIFFScanlineSize + * TODO: resolve this + */ +tsize_t +TIFFOldScanlineSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t scanline; + + scanline = multiply (tif, td->td_bitspersample, td->td_imagewidth, + "TIFFScanlineSize"); + if (td->td_planarconfig == PLANARCONFIG_CONTIG) + scanline = multiply (tif, scanline, td->td_samplesperpixel, + "TIFFScanlineSize"); + return ((tsize_t) TIFFhowmany8(scanline)); +} + +/* + * Return the number of bytes to read/write in a call to + * one of the scanline-oriented i/o routines. Note that + * this number may be 1/samples-per-pixel if data is + * stored as separate planes. + * The ScanlineSize in case of YCbCrSubsampling is defined as the + * strip size divided by the strip height, i.e. the size of a pack of vertical + * subsampling lines divided by vertical subsampling. It should thus make + * sense when multiplied by a multiple of vertical subsampling. + * Some stuff depends on this newer version of TIFFScanlineSize + * TODO: resolve this + */ +tsize_t +TIFFNewScanlineSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t scanline; + + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + if (td->td_photometric == PHOTOMETRIC_YCBCR + && !isUpSampled(tif)) { + uint16 ycbcrsubsampling[2]; + + TIFFGetField(tif, TIFFTAG_YCBCRSUBSAMPLING, + ycbcrsubsampling + 0, + ycbcrsubsampling + 1); + + if (ycbcrsubsampling[0]*ycbcrsubsampling[1] == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Invalid YCbCr subsampling"); + return 0; + } + + return((tsize_t) ((((td->td_imagewidth+ycbcrsubsampling[0]-1) + /ycbcrsubsampling[0]) + *(ycbcrsubsampling[0]*ycbcrsubsampling[1]+2) + *td->td_bitspersample+7) + /8)/ycbcrsubsampling[1]); + + } else { + scanline = multiply(tif, td->td_imagewidth, + td->td_samplesperpixel, + "TIFFScanlineSize"); + } + } else + scanline = td->td_imagewidth; + return ((tsize_t) TIFFhowmany8(multiply(tif, scanline, + td->td_bitspersample, + "TIFFScanlineSize"))); +} + +/* + * Return the number of bytes required to store a complete + * decoded and packed raster scanline (as opposed to the + * I/O size returned by TIFFScanlineSize which may be less + * if data is store as separate planes). + */ +tsize_t +TIFFRasterScanlineSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t scanline; + + scanline = multiply (tif, td->td_bitspersample, td->td_imagewidth, + "TIFFRasterScanlineSize"); + if (td->td_planarconfig == PLANARCONFIG_CONTIG) { + scanline = multiply (tif, scanline, td->td_samplesperpixel, + "TIFFRasterScanlineSize"); + return ((tsize_t) TIFFhowmany8(scanline)); + } else + return ((tsize_t) multiply (tif, TIFFhowmany8(scanline), + td->td_samplesperpixel, + "TIFFRasterScanlineSize")); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_swab.c b/tiff/libtiff/tif_swab.c new file mode 100644 index 0000000..e4f1a6d --- /dev/null +++ b/tiff/libtiff/tif_swab.c @@ -0,0 +1,242 @@ +/* $Id: tif_swab.c,v 1.4.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library Bit & Byte Swapping Support. + * + * XXX We assume short = 16-bits and long = 32-bits XXX + */ +#include "tiffiop.h" + +#ifndef TIFFSwabShort +void +TIFFSwabShort(uint16* wp) +{ + register unsigned char* cp = (unsigned char*) wp; + unsigned char t; + + t = cp[1]; cp[1] = cp[0]; cp[0] = t; +} +#endif + +#ifndef TIFFSwabLong +void +TIFFSwabLong(uint32* lp) +{ + register unsigned char* cp = (unsigned char*) lp; + unsigned char t; + + t = cp[3]; cp[3] = cp[0]; cp[0] = t; + t = cp[2]; cp[2] = cp[1]; cp[1] = t; +} +#endif + +#ifndef TIFFSwabArrayOfShort +void +TIFFSwabArrayOfShort(uint16* wp, register unsigned long n) +{ + register unsigned char* cp; + register unsigned char t; + + /* XXX unroll loop some */ + while (n-- > 0) { + cp = (unsigned char*) wp; + t = cp[1]; cp[1] = cp[0]; cp[0] = t; + wp++; + } +} +#endif + +#ifndef TIFFSwabArrayOfTriples +void +TIFFSwabArrayOfTriples(uint8* tp, unsigned long n) +{ + unsigned char* cp; + unsigned char t; + + /* XXX unroll loop some */ + while (n-- > 0) { + cp = (unsigned char*) tp; + t = cp[2]; cp[2] = cp[0]; cp[0] = t; + tp += 3; + } +} +#endif + +#ifndef TIFFSwabArrayOfLong +void +TIFFSwabArrayOfLong(register uint32* lp, register unsigned long n) +{ + register unsigned char *cp; + register unsigned char t; + + /* XXX unroll loop some */ + while (n-- > 0) { + cp = (unsigned char *)lp; + t = cp[3]; cp[3] = cp[0]; cp[0] = t; + t = cp[2]; cp[2] = cp[1]; cp[1] = t; + lp++; + } +} +#endif + +#ifndef TIFFSwabDouble +void +TIFFSwabDouble(double *dp) +{ + register uint32* lp = (uint32*) dp; + uint32 t; + + TIFFSwabArrayOfLong(lp, 2); + t = lp[0]; lp[0] = lp[1]; lp[1] = t; +} +#endif + +#ifndef TIFFSwabArrayOfDouble +void +TIFFSwabArrayOfDouble(double* dp, register unsigned long n) +{ + register uint32* lp = (uint32*) dp; + register uint32 t; + + TIFFSwabArrayOfLong(lp, n + n); + while (n-- > 0) { + t = lp[0]; lp[0] = lp[1]; lp[1] = t; + lp += 2; + } +} +#endif + +/* + * Bit reversal tables. TIFFBitRevTable[<byte>] gives + * the bit reversed value of <byte>. Used in various + * places in the library when the FillOrder requires + * bit reversal of byte values (e.g. CCITT Fax 3 + * encoding/decoding). TIFFNoBitRevTable is provided + * for algorithms that want an equivalent table that + * do not reverse bit values. + */ +static const unsigned char TIFFBitRevTable[256] = { + 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, + 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, + 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, + 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, + 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, + 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, + 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, + 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, + 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, + 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, + 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, + 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, + 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, + 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, + 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, + 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, + 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, + 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, + 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, + 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, + 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, + 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, + 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, + 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, + 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, + 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, + 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, + 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, + 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, + 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, + 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, + 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff +}; +static const unsigned char TIFFNoBitRevTable[256] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, + 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, + 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, + 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, + 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, + 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, + 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, + 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, + 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, + 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, + 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, + 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, + 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, + 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, + 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, + 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, + 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, + 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, + 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, + 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, + 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, + 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, + 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, +}; + +const unsigned char* +TIFFGetBitRevTable(int reversed) +{ + return (reversed ? TIFFBitRevTable : TIFFNoBitRevTable); +} + +void +TIFFReverseBits(register unsigned char* cp, register unsigned long n) +{ + for (; n > 8; n -= 8) { + cp[0] = TIFFBitRevTable[cp[0]]; + cp[1] = TIFFBitRevTable[cp[1]]; + cp[2] = TIFFBitRevTable[cp[2]]; + cp[3] = TIFFBitRevTable[cp[3]]; + cp[4] = TIFFBitRevTable[cp[4]]; + cp[5] = TIFFBitRevTable[cp[5]]; + cp[6] = TIFFBitRevTable[cp[6]]; + cp[7] = TIFFBitRevTable[cp[7]]; + cp += 8; + } + while (n-- > 0) + *cp = TIFFBitRevTable[*cp], cp++; +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_thunder.c b/tiff/libtiff/tif_thunder.c new file mode 100644 index 0000000..8e7a125 --- /dev/null +++ b/tiff/libtiff/tif_thunder.c @@ -0,0 +1,165 @@ +/* $Id: tif_thunder.c,v 1.5.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef THUNDER_SUPPORT +/* + * TIFF Library. + * + * ThunderScan 4-bit Compression Algorithm Support + */ + +/* + * ThunderScan uses an encoding scheme designed for + * 4-bit pixel values. Data is encoded in bytes, with + * each byte split into a 2-bit code word and a 6-bit + * data value. The encoding gives raw data, runs of + * pixels, or pixel values encoded as a delta from the + * previous pixel value. For the latter, either 2-bit + * or 3-bit delta values are used, with the deltas packed + * into a single byte. + */ +#define THUNDER_DATA 0x3f /* mask for 6-bit data */ +#define THUNDER_CODE 0xc0 /* mask for 2-bit code word */ +/* code values */ +#define THUNDER_RUN 0x00 /* run of pixels w/ encoded count */ +#define THUNDER_2BITDELTAS 0x40 /* 3 pixels w/ encoded 2-bit deltas */ +#define DELTA2_SKIP 2 /* skip code for 2-bit deltas */ +#define THUNDER_3BITDELTAS 0x80 /* 2 pixels w/ encoded 3-bit deltas */ +#define DELTA3_SKIP 4 /* skip code for 3-bit deltas */ +#define THUNDER_RAW 0xc0 /* raw data encoded */ + +static const int twobitdeltas[4] = { 0, 1, 0, -1 }; +static const int threebitdeltas[8] = { 0, 1, 2, 3, 0, -3, -2, -1 }; + +#define SETPIXEL(op, v) { \ + lastpixel = (v) & 0xf; \ + if (npixels++ & 1) \ + *op++ |= lastpixel; \ + else \ + op[0] = (tidataval_t) (lastpixel << 4); \ +} + +static int +ThunderDecode(TIFF* tif, tidata_t op, tsize_t maxpixels) +{ + register unsigned char *bp; + register tsize_t cc; + unsigned int lastpixel; + tsize_t npixels; + + bp = (unsigned char *)tif->tif_rawcp; + cc = tif->tif_rawcc; + lastpixel = 0; + npixels = 0; + while (cc > 0 && npixels < maxpixels) { + int n, delta; + + n = *bp++, cc--; + switch (n & THUNDER_CODE) { + case THUNDER_RUN: /* pixel run */ + /* + * Replicate the last pixel n times, + * where n is the lower-order 6 bits. + */ + if (npixels & 1) { + op[0] |= lastpixel; + lastpixel = *op++; npixels++; n--; + } else + lastpixel |= lastpixel << 4; + npixels += n; + if (npixels < maxpixels) { + for (; n > 0; n -= 2) + *op++ = (tidataval_t) lastpixel; + } + if (n == -1) + *--op &= 0xf0; + lastpixel &= 0xf; + break; + case THUNDER_2BITDELTAS: /* 2-bit deltas */ + if ((delta = ((n >> 4) & 3)) != DELTA2_SKIP) + SETPIXEL(op, lastpixel + twobitdeltas[delta]); + if ((delta = ((n >> 2) & 3)) != DELTA2_SKIP) + SETPIXEL(op, lastpixel + twobitdeltas[delta]); + if ((delta = (n & 3)) != DELTA2_SKIP) + SETPIXEL(op, lastpixel + twobitdeltas[delta]); + break; + case THUNDER_3BITDELTAS: /* 3-bit deltas */ + if ((delta = ((n >> 3) & 7)) != DELTA3_SKIP) + SETPIXEL(op, lastpixel + threebitdeltas[delta]); + if ((delta = (n & 7)) != DELTA3_SKIP) + SETPIXEL(op, lastpixel + threebitdeltas[delta]); + break; + case THUNDER_RAW: /* raw data */ + SETPIXEL(op, n); + break; + } + } + tif->tif_rawcp = (tidata_t) bp; + tif->tif_rawcc = cc; + if (npixels != maxpixels) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "ThunderDecode: %s data at scanline %ld (%lu != %lu)", + npixels < maxpixels ? "Not enough" : "Too much", + (long) tif->tif_row, (long) npixels, (long) maxpixels); + return (0); + } + return (1); +} + +static int +ThunderDecodeRow(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s) +{ + tidata_t row = buf; + + (void) s; + while ((long)occ > 0) { + if (!ThunderDecode(tif, row, tif->tif_dir.td_imagewidth)) + return (0); + occ -= tif->tif_scanlinesize; + row += tif->tif_scanlinesize; + } + return (1); +} + +int +TIFFInitThunderScan(TIFF* tif, int scheme) +{ + (void) scheme; + tif->tif_decoderow = ThunderDecodeRow; + tif->tif_decodestrip = ThunderDecodeRow; + return (1); +} +#endif /* THUNDER_SUPPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_tile.c b/tiff/libtiff/tif_tile.c new file mode 100644 index 0000000..d8379e6 --- /dev/null +++ b/tiff/libtiff/tif_tile.c @@ -0,0 +1,280 @@ +/* $Id: tif_tile.c,v 1.12.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1991-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Tiled Image Support Routines. + */ +#include "tiffiop.h" + +static uint32 +summarize(TIFF* tif, size_t summand1, size_t summand2, const char* where) +{ + /* + * XXX: We are using casting to uint32 here, because sizeof(size_t) + * may be larger than sizeof(uint32) on 64-bit architectures. + */ + uint32 bytes = summand1 + summand2; + + if (bytes - summand1 != summand2) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Integer overflow in %s", where); + bytes = 0; + } + + return (bytes); +} + +static uint32 +multiply(TIFF* tif, size_t nmemb, size_t elem_size, const char* where) +{ + uint32 bytes = nmemb * elem_size; + + if (elem_size && bytes / elem_size != nmemb) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Integer overflow in %s", where); + bytes = 0; + } + + return (bytes); +} + +/* + * Compute which tile an (x,y,z,s) value is in. + */ +ttile_t +TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s) +{ + TIFFDirectory *td = &tif->tif_dir; + uint32 dx = td->td_tilewidth; + uint32 dy = td->td_tilelength; + uint32 dz = td->td_tiledepth; + ttile_t tile = 1; + + if (td->td_imagedepth == 1) + z = 0; + if (dx == (uint32) -1) + dx = td->td_imagewidth; + if (dy == (uint32) -1) + dy = td->td_imagelength; + if (dz == (uint32) -1) + dz = td->td_imagedepth; + if (dx != 0 && dy != 0 && dz != 0) { + uint32 xpt = TIFFhowmany(td->td_imagewidth, dx); + uint32 ypt = TIFFhowmany(td->td_imagelength, dy); + uint32 zpt = TIFFhowmany(td->td_imagedepth, dz); + + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) + tile = (xpt*ypt*zpt)*s + + (xpt*ypt)*(z/dz) + + xpt*(y/dy) + + x/dx; + else + tile = (xpt*ypt)*(z/dz) + xpt*(y/dy) + x/dx; + } + return (tile); +} + +/* + * Check an (x,y,z,s) coordinate + * against the image bounds. + */ +int +TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s) +{ + TIFFDirectory *td = &tif->tif_dir; + + if (x >= td->td_imagewidth) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Col out of range, max %lu", + (unsigned long) x, + (unsigned long) (td->td_imagewidth - 1)); + return (0); + } + if (y >= td->td_imagelength) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Row out of range, max %lu", + (unsigned long) y, + (unsigned long) (td->td_imagelength - 1)); + return (0); + } + if (z >= td->td_imagedepth) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Depth out of range, max %lu", + (unsigned long) z, + (unsigned long) (td->td_imagedepth - 1)); + return (0); + } + if (td->td_planarconfig == PLANARCONFIG_SEPARATE && + s >= td->td_samplesperpixel) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%lu: Sample out of range, max %lu", + (unsigned long) s, + (unsigned long) (td->td_samplesperpixel - 1)); + return (0); + } + return (1); +} + +/* + * Compute how many tiles are in an image. + */ +ttile_t +TIFFNumberOfTiles(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + uint32 dx = td->td_tilewidth; + uint32 dy = td->td_tilelength; + uint32 dz = td->td_tiledepth; + ttile_t ntiles; + + if (dx == (uint32) -1) + dx = td->td_imagewidth; + if (dy == (uint32) -1) + dy = td->td_imagelength; + if (dz == (uint32) -1) + dz = td->td_imagedepth; + ntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 : + multiply(tif, multiply(tif, TIFFhowmany(td->td_imagewidth, dx), + TIFFhowmany(td->td_imagelength, dy), + "TIFFNumberOfTiles"), + TIFFhowmany(td->td_imagedepth, dz), "TIFFNumberOfTiles"); + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) + ntiles = multiply(tif, ntiles, td->td_samplesperpixel, + "TIFFNumberOfTiles"); + return (ntiles); +} + +/* + * Compute the # bytes in each row of a tile. + */ +tsize_t +TIFFTileRowSize(TIFF* tif) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t rowsize; + + if (td->td_tilelength == 0 || td->td_tilewidth == 0) + return ((tsize_t) 0); + rowsize = multiply(tif, td->td_bitspersample, td->td_tilewidth, + "TIFFTileRowSize"); + if (td->td_planarconfig == PLANARCONFIG_CONTIG) + rowsize = multiply(tif, rowsize, td->td_samplesperpixel, + "TIFFTileRowSize"); + return ((tsize_t) TIFFhowmany8(rowsize)); +} + +/* + * Compute the # bytes in a variable length, row-aligned tile. + */ +tsize_t +TIFFVTileSize(TIFF* tif, uint32 nrows) +{ + TIFFDirectory *td = &tif->tif_dir; + tsize_t tilesize; + + if (td->td_tilelength == 0 || td->td_tilewidth == 0 || + td->td_tiledepth == 0) + return ((tsize_t) 0); + if (td->td_planarconfig == PLANARCONFIG_CONTIG && + td->td_photometric == PHOTOMETRIC_YCBCR && + !isUpSampled(tif)) { + /* + * Packed YCbCr data contain one Cb+Cr for every + * HorizontalSampling*VerticalSampling Y values. + * Must also roundup width and height when calculating + * since images that are not a multiple of the + * horizontal/vertical subsampling area include + * YCbCr data for the extended image. + */ + tsize_t w = + TIFFroundup(td->td_tilewidth, td->td_ycbcrsubsampling[0]); + tsize_t rowsize = + TIFFhowmany8(multiply(tif, w, td->td_bitspersample, + "TIFFVTileSize")); + tsize_t samplingarea = + td->td_ycbcrsubsampling[0]*td->td_ycbcrsubsampling[1]; + if (samplingarea == 0) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Invalid YCbCr subsampling"); + return 0; + } + nrows = TIFFroundup(nrows, td->td_ycbcrsubsampling[1]); + /* NB: don't need TIFFhowmany here 'cuz everything is rounded */ + tilesize = multiply(tif, nrows, rowsize, "TIFFVTileSize"); + tilesize = summarize(tif, tilesize, + multiply(tif, 2, tilesize / samplingarea, + "TIFFVTileSize"), + "TIFFVTileSize"); + } else + tilesize = multiply(tif, nrows, TIFFTileRowSize(tif), + "TIFFVTileSize"); + return ((tsize_t) + multiply(tif, tilesize, td->td_tiledepth, "TIFFVTileSize")); +} + +/* + * Compute the # bytes in a row-aligned tile. + */ +tsize_t +TIFFTileSize(TIFF* tif) +{ + return (TIFFVTileSize(tif, tif->tif_dir.td_tilelength)); +} + +/* + * Compute a default tile size based on the image + * characteristics and a requested value. If a + * request is <1 then we choose a size according + * to certain heuristics. + */ +void +TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th) +{ + (*tif->tif_deftilesize)(tif, tw, th); +} + +void +_TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th) +{ + (void) tif; + if (*(int32*) tw < 1) + *tw = 256; + if (*(int32*) th < 1) + *th = 256; + /* roundup to a multiple of 16 per the spec */ + if (*tw & 0xf) + *tw = TIFFroundup(*tw, 16); + if (*th & 0xf) + *th = TIFFroundup(*th, 16); +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_unix.c b/tiff/libtiff/tif_unix.c new file mode 100644 index 0000000..b73e80d --- /dev/null +++ b/tiff/libtiff/tif_unix.c @@ -0,0 +1,300 @@ +/* $Id: tif_unix.c,v 1.12.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library UNIX-specific Routines. These are should also work with the + * Windows Common RunTime Library. + */ +#include "tif_config.h" + +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif + +#include <stdarg.h> +#include <stdlib.h> +#include <sys/stat.h> + +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#ifdef HAVE_FCNTL_H +# include <fcntl.h> +#endif + +#ifdef HAVE_IO_H +# include <io.h> +#endif + +#include "tiffiop.h" + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return ((tsize_t) read((int) fd, buf, (size_t) size)); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return ((tsize_t) write((int) fd, buf, (size_t) size)); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + return ((toff_t) lseek((int) fd, (off_t) off, whence)); +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (close((int) fd)); +} + + +static toff_t +_tiffSizeProc(thandle_t fd) +{ +#ifdef _AM29K + long fsize; + return ((fsize = lseek((int) fd, 0, SEEK_END)) < 0 ? 0 : fsize); +#else + struct stat sb; + return (toff_t) (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); +#endif +} + +#ifdef HAVE_MMAP +#include <sys/mman.h> + +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + toff_t size = _tiffSizeProc(fd); + if (size != (toff_t) -1) { + *pbase = (tdata_t) + mmap(0, size, PROT_READ, MAP_SHARED, (int) fd, 0); + if (*pbase != (tdata_t) -1) { + *psize = size; + return (1); + } + } + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; + (void) munmap(base, (off_t) size); +} +#else /* !HAVE_MMAP */ +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + (void) fd; (void) pbase; (void) psize; + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; (void) base; (void) size; +} +#endif /* !HAVE_MMAP */ + +/* + * Open a TIFF file descriptor for read/writing. + */ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, + (thandle_t) fd, + _tiffReadProc, _tiffWriteProc, + _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, + _tiffMapProc, _tiffUnmapProc); + if (tif) + tif->tif_fd = fd; + return (tif); +} + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + int m, fd; + TIFF* tif; + + m = _TIFFgetMode(mode, module); + if (m == -1) + return ((TIFF*)0); + +/* for cygwin and mingw */ +#ifdef O_BINARY + m |= O_BINARY; +#endif + +#ifdef _AM29K + fd = open(name, m); +#else + fd = open(name, m, 0666); +#endif + if (fd < 0) { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF *)0); + } + + tif = TIFFFdOpen((int)fd, name, mode); + if(!tif) + close(fd); + return tif; +} + +#ifdef __WIN32__ +#include <windows.h> +/* + * Open a TIFF file with a Unicode filename, for read/writing. + */ +TIFF* +TIFFOpenW(const wchar_t* name, const char* mode) +{ + static const char module[] = "TIFFOpenW"; + int m, fd; + int mbsize; + char *mbname; + TIFF* tif; + + m = _TIFFgetMode(mode, module); + if (m == -1) + return ((TIFF*)0); + +/* for cygwin and mingw */ +#ifdef O_BINARY + m |= O_BINARY; +#endif + + fd = _wopen(name, m, 0666); + if (fd < 0) { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF *)0); + } + + mbname = NULL; + mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL); + if (mbsize > 0) { + mbname = _TIFFmalloc(mbsize); + if (!mbname) { + TIFFErrorExt(0, module, + "Can't allocate space for filename conversion buffer"); + return ((TIFF*)0); + } + + WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize, + NULL, NULL); + } + + tif = TIFFFdOpen((int)fd, (mbname != NULL) ? mbname : "<unknown>", + mode); + + _TIFFfree(mbname); + + if(!tif) + close(fd); + return tif; +} +#endif + +void* +_TIFFmalloc(tsize_t s) +{ + return (malloc((size_t) s)); +} + +void +_TIFFfree(tdata_t p) +{ + free(p); +} + +void* +_TIFFrealloc(tdata_t p, tsize_t s) +{ + return (realloc(p, (size_t) s)); +} + +void +_TIFFmemset(tdata_t p, int v, tsize_t c) +{ + memset(p, v, (size_t) c); +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) +{ + memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + return (memcmp(p1, p2, (size_t) c)); +} + +static void +unixWarningHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFwarningHandler = unixWarningHandler; + +static void +unixErrorHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFerrorHandler = unixErrorHandler; +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_version.c b/tiff/libtiff/tif_version.c new file mode 100644 index 0000000..218dab5 --- /dev/null +++ b/tiff/libtiff/tif_version.c @@ -0,0 +1,40 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_version.c,v 1.2.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ +/* + * Copyright (c) 1992-1997 Sam Leffler + * Copyright (c) 1992-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ +#include "tiffiop.h" + +static const char TIFFVersion[] = TIFFLIB_VERSION_STR; + +const char* +TIFFGetVersion(void) +{ + return (TIFFVersion); +} +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_warning.c b/tiff/libtiff/tif_warning.c new file mode 100644 index 0000000..fe974d9 --- /dev/null +++ b/tiff/libtiff/tif_warning.c @@ -0,0 +1,81 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_warning.c,v 1.2.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + */ +#include "tiffiop.h" + +TIFFErrorHandlerExt _TIFFwarningHandlerExt = NULL; + +TIFFErrorHandler +TIFFSetWarningHandler(TIFFErrorHandler handler) +{ + TIFFErrorHandler prev = _TIFFwarningHandler; + _TIFFwarningHandler = handler; + return (prev); +} + +TIFFErrorHandlerExt +TIFFSetWarningHandlerExt(TIFFErrorHandlerExt handler) +{ + TIFFErrorHandlerExt prev = _TIFFwarningHandlerExt; + _TIFFwarningHandlerExt = handler; + return (prev); +} + +void +TIFFWarning(const char* module, const char* fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + if (_TIFFwarningHandler) + (*_TIFFwarningHandler)(module, fmt, ap); + if (_TIFFwarningHandlerExt) + (*_TIFFwarningHandlerExt)(0, module, fmt, ap); + va_end(ap); +} + +void +TIFFWarningExt(thandle_t fd, const char* module, const char* fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + if (_TIFFwarningHandler) + (*_TIFFwarningHandler)(module, fmt, ap); + if (_TIFFwarningHandlerExt) + (*_TIFFwarningHandlerExt)(fd, module, fmt, ap); + va_end(ap); +} + + +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_win3.c b/tiff/libtiff/tif_win3.c new file mode 100644 index 0000000..5ac7513 --- /dev/null +++ b/tiff/libtiff/tif_win3.c @@ -0,0 +1,232 @@ +/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_win3.c,v 1.2.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library Windows 3.x-specific Routines. + */ +#include "tiffiop.h" +#if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(_MSC_VER) +#include <io.h> /* for open, close, etc. function prototypes */ +#endif + +#include <windows.h> +#include <windowsx.h> +#include <memory.h> + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return (_hread(fd, buf, size)); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return (_hwrite(fd, buf, size)); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + return (_llseek(fd, (off_t) off, whence)); +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (_lclose(fd)); +} + +#include <sys/stat.h> + +static toff_t +_tiffSizeProc(thandle_t fd) +{ + struct stat sb; + return (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); +} + +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ +} + +/* + * Open a TIFF file descriptor for read/writing. + */ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, + (thandle_t) fd, + _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, + _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); + if (tif) + tif->tif_fd = fd; + return (tif); +} + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + int m, fd; + OFSTRUCT of; + int mm = 0; + + m = _TIFFgetMode(mode, module); + if (m == -1) + return ((TIFF*)0); + if (m & O_CREAT) { + if ((m & O_TRUNC) || OpenFile(name, &of, OF_EXIST) != HFILE_ERROR) + mm |= OF_CREATE; + } + if (m & O_WRONLY) + mm |= OF_WRITE; + if (m & O_RDWR) + mm |= OF_READWRITE; + fd = OpenFile(name, &of, mm); + if (fd < 0) { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF*)0); + } + return (TIFFFdOpen(fd, name, mode)); +} + +tdata_t +_TIFFmalloc(tsize_t s) +{ + return (tdata_t) GlobalAllocPtr(GHND, (DWORD) s); +} + +void +_TIFFfree(tdata_t p) +{ + GlobalFreePtr(p); +} + +tdata_t +_TIFFrealloc(tdata_t p, tsize_t s) +{ + return (tdata_t) GlobalReAllocPtr(p, (DWORD) s, GHND); +} + +void +_TIFFmemset(tdata_t p, int v, tsize_t c) +{ + char* pp = (char*) p; + + while (c > 0) { + tsize_t chunk = 0x10000 - ((uint32) pp & 0xffff);/* What's left in segment */ + if (chunk > 0xff00) /* No more than 0xff00 */ + chunk = 0xff00; + if (chunk > c) /* No more than needed */ + chunk = c; + memset(pp, v, chunk); + pp = (char*) (chunk + (char huge*) pp); + c -= chunk; + } +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) +{ + if (c > 0xFFFF) + hmemcpy((void _huge*) d, (void _huge*) s, c); + else + (void) memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t d, const tdata_t s, tsize_t c) +{ + char* dd = (char*) d; + char* ss = (char*) s; + tsize_t chunks, chunkd, chunk; + int result; + + while (c > 0) { + chunks = 0x10000 - ((uint32) ss & 0xffff); /* What's left in segment */ + chunkd = 0x10000 - ((uint32) dd & 0xffff); /* What's left in segment */ + chunk = c; /* Get the largest of */ + if (chunk > chunks) /* c, chunks, chunkd, */ + chunk = chunks; /* 0xff00 */ + if (chunk > chunkd) + chunk = chunkd; + if (chunk > 0xff00) + chunk = 0xff00; + result = memcmp(dd, ss, chunk); + if (result != 0) + return (result); + dd = (char*) (chunk + (char huge*) dd); + ss = (char*) (chunk + (char huge*) ss); + c -= chunk; + } + return (0); +} + +static void +win3WarningHandler(const char* module, const char* fmt, va_list ap) +{ + char e[512] = { '\0' }; + if (module != NULL) + strcat(strcpy(e, module), ":"); + vsprintf(e+strlen(e), fmt, ap); + strcat(e, "."); + MessageBox(GetActiveWindow(), e, "LibTIFF Warning", + MB_OK|MB_ICONEXCLAMATION); +} +TIFFErrorHandler _TIFFwarningHandler = win3WarningHandler; + +static void +win3ErrorHandler(const char* module, const char* fmt, va_list ap) +{ + char e[512] = { '\0' }; + if (module != NULL) + strcat(strcpy(e, module), ":"); + vsprintf(e+strlen(e), fmt, ap); + strcat(e, "."); + MessageBox(GetActiveWindow(), e, "LibTIFF Error", MB_OK|MB_ICONSTOP); +} +TIFFErrorHandler _TIFFerrorHandler = win3ErrorHandler; +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_win32.c b/tiff/libtiff/tif_win32.c new file mode 100644 index 0000000..2ab944b --- /dev/null +++ b/tiff/libtiff/tif_win32.c @@ -0,0 +1,408 @@ +/* $Id: tif_win32.c,v 1.21.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library Win32-specific Routines. Adapted from tif_unix.c 4/5/95 by + * Scott Wagner (wagner@itek.com), Itek Graphix, Rochester, NY USA + */ +#include "tiffiop.h" + +#include <windows.h> + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + DWORD dwSizeRead; + if (!ReadFile(fd, buf, size, &dwSizeRead, NULL)) + return(0); + return ((tsize_t) dwSizeRead); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + DWORD dwSizeWritten; + if (!WriteFile(fd, buf, size, &dwSizeWritten, NULL)) + return(0); + return ((tsize_t) dwSizeWritten); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + ULARGE_INTEGER li; + DWORD dwMoveMethod; + + li.QuadPart = off; + + switch(whence) + { + case SEEK_SET: + dwMoveMethod = FILE_BEGIN; + break; + case SEEK_CUR: + dwMoveMethod = FILE_CURRENT; + break; + case SEEK_END: + dwMoveMethod = FILE_END; + break; + default: + dwMoveMethod = FILE_BEGIN; + break; + } + return ((toff_t)SetFilePointer(fd, (LONG) li.LowPart, + (PLONG)&li.HighPart, dwMoveMethod)); +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (CloseHandle(fd) ? 0 : -1); +} + +static toff_t +_tiffSizeProc(thandle_t fd) +{ + return ((toff_t)GetFileSize(fd, NULL)); +} + +static int +_tiffDummyMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + (void) fd; + (void) pbase; + (void) psize; + return (0); +} + +/* + * From "Hermann Josef Hill" <lhill@rhein-zeitung.de>: + * + * Windows uses both a handle and a pointer for file mapping, + * but according to the SDK documentation and Richter's book + * "Advanced Windows Programming" it is safe to free the handle + * after obtaining the file mapping pointer + * + * This removes a nasty OS dependency and cures a problem + * with Visual C++ 5.0 + */ +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + toff_t size; + HANDLE hMapFile; + + if ((size = _tiffSizeProc(fd)) == 0xFFFFFFFF) + return (0); + hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, size, NULL); + if (hMapFile == NULL) + return (0); + *pbase = MapViewOfFile(hMapFile, FILE_MAP_READ, 0, 0, 0); + CloseHandle(hMapFile); + if (*pbase == NULL) + return (0); + *psize = size; + return(1); +} + +static void +_tiffDummyUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; + (void) base; + (void) size; +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + UnmapViewOfFile(base); +} + +/* + * Open a TIFF file descriptor for read/writing. + * Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode + * string, which forces the file to be opened unmapped. + */ +TIFF* +TIFFFdOpen(int ifd, const char* name, const char* mode) +{ + TIFF* tif; + BOOL fSuppressMap = (mode[1] == 'u' || (mode[1]!=0 && mode[2] == 'u')); + + tif = TIFFClientOpen(name, mode, (thandle_t)ifd, + _tiffReadProc, _tiffWriteProc, + _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, + fSuppressMap ? _tiffDummyMapProc : _tiffMapProc, + fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc); + if (tif) + tif->tif_fd = ifd; + return (tif); +} + +#ifndef _WIN32_WCE + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + thandle_t fd; + int m; + DWORD dwMode; + TIFF* tif; + + m = _TIFFgetMode(mode, module); + + switch(m) + { + case O_RDONLY: + dwMode = OPEN_EXISTING; + break; + case O_RDWR: + dwMode = OPEN_ALWAYS; + break; + case O_RDWR|O_CREAT: + dwMode = OPEN_ALWAYS; + break; + case O_RDWR|O_TRUNC: + dwMode = CREATE_ALWAYS; + break; + case O_RDWR|O_CREAT|O_TRUNC: + dwMode = CREATE_ALWAYS; + break; + default: + return ((TIFF*)0); + } + fd = (thandle_t)CreateFileA(name, + (m == O_RDONLY)?GENERIC_READ:(GENERIC_READ | GENERIC_WRITE), + FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwMode, + (m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL, + NULL); + if (fd == INVALID_HANDLE_VALUE) { + TIFFErrorExt(0, module, "%s: Cannot open", name); + return ((TIFF *)0); + } + + tif = TIFFFdOpen((int)fd, name, mode); + if(!tif) + CloseHandle(fd); + return tif; +} + +/* + * Open a TIFF file with a Unicode filename, for read/writing. + */ +TIFF* +TIFFOpenW(const wchar_t* name, const char* mode) +{ + static const char module[] = "TIFFOpenW"; + thandle_t fd; + int m; + DWORD dwMode; + int mbsize; + char *mbname; + TIFF *tif; + + m = _TIFFgetMode(mode, module); + + switch(m) { + case O_RDONLY: dwMode = OPEN_EXISTING; break; + case O_RDWR: dwMode = OPEN_ALWAYS; break; + case O_RDWR|O_CREAT: dwMode = OPEN_ALWAYS; break; + case O_RDWR|O_TRUNC: dwMode = CREATE_ALWAYS; break; + case O_RDWR|O_CREAT|O_TRUNC: dwMode = CREATE_ALWAYS; break; + default: return ((TIFF*)0); + } + + fd = (thandle_t)CreateFileW(name, + (m == O_RDONLY)?GENERIC_READ:(GENERIC_READ|GENERIC_WRITE), + FILE_SHARE_READ, NULL, dwMode, + (m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL, + NULL); + if (fd == INVALID_HANDLE_VALUE) { + TIFFErrorExt(0, module, "%S: Cannot open", name); + return ((TIFF *)0); + } + + mbname = NULL; + mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL); + if (mbsize > 0) { + mbname = (char *)_TIFFmalloc(mbsize); + if (!mbname) { + TIFFErrorExt(0, module, + "Can't allocate space for filename conversion buffer"); + return ((TIFF*)0); + } + + WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize, + NULL, NULL); + } + + tif = TIFFFdOpen((int)fd, + (mbname != NULL) ? mbname : "<unknown>", mode); + if(!tif) + CloseHandle(fd); + + _TIFFfree(mbname); + + return tif; +} + +#endif /* ndef _WIN32_WCE */ + + +tdata_t +_TIFFmalloc(tsize_t s) +{ + return ((tdata_t)GlobalAlloc(GMEM_FIXED, s)); +} + +void +_TIFFfree(tdata_t p) +{ + GlobalFree(p); + return; +} + +tdata_t +_TIFFrealloc(tdata_t p, tsize_t s) +{ + void* pvTmp; + tsize_t old; + + if(p == NULL) + return ((tdata_t)GlobalAlloc(GMEM_FIXED, s)); + + old = GlobalSize(p); + + if (old>=s) { + if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) { + CopyMemory(pvTmp, p, s); + GlobalFree(p); + } + } else { + if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) { + CopyMemory(pvTmp, p, old); + GlobalFree(p); + } + } + return ((tdata_t)pvTmp); +} + +void +_TIFFmemset(void* p, int v, tsize_t c) +{ + FillMemory(p, c, (BYTE)v); +} + +void +_TIFFmemcpy(void* d, const tdata_t s, tsize_t c) +{ + CopyMemory(d, s, c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + register const BYTE *pb1 = (const BYTE *) p1; + register const BYTE *pb2 = (const BYTE *) p2; + register DWORD dwTmp = c; + register int iTmp; + for (iTmp = 0; dwTmp-- && !iTmp; iTmp = (int)*pb1++ - (int)*pb2++) + ; + return (iTmp); +} + +#ifndef _WIN32_WCE + +static void +Win32WarningHandler(const char* module, const char* fmt, va_list ap) +{ +#ifndef TIF_PLATFORM_CONSOLE + LPTSTR szTitle; + LPTSTR szTmp; + LPCTSTR szTitleText = "%s Warning"; + LPCTSTR szDefaultModule = "LIBTIFF"; + LPCTSTR szTmpModule = (module == NULL) ? szDefaultModule : module; + if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmpModule) + + strlen(szTitleText) + strlen(fmt) + 128)*sizeof(char))) == NULL) + return; + sprintf(szTitle, szTitleText, szTmpModule); + szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char); + vsprintf(szTmp, fmt, ap); + MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION); + LocalFree(szTitle); + return; +#else + if (module != NULL) + fprintf(stderr, "%s: ", module); + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +#endif +} +TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler; + +static void +Win32ErrorHandler(const char* module, const char* fmt, va_list ap) +{ +#ifndef TIF_PLATFORM_CONSOLE + LPTSTR szTitle; + LPTSTR szTmp; + LPCTSTR szTitleText = "%s Error"; + LPCTSTR szDefaultModule = "LIBTIFF"; + LPCTSTR szTmpModule = (module == NULL) ? szDefaultModule : module; + if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmpModule) + + strlen(szTitleText) + strlen(fmt) + 128)*sizeof(char))) == NULL) + return; + sprintf(szTitle, szTitleText, szTmpModule); + szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char); + vsprintf(szTmp, fmt, ap); + MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION); + LocalFree(szTitle); + return; +#else + if (module != NULL) + fprintf(stderr, "%s: ", module); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +#endif +} +TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler; + +#endif /* ndef _WIN32_WCE */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_write.c b/tiff/libtiff/tif_write.c new file mode 100644 index 0000000..bd08418 --- /dev/null +++ b/tiff/libtiff/tif_write.c @@ -0,0 +1,718 @@ +/* $Id: tif_write.c,v 1.22.2.5 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library. + * + * Scanline-oriented Write Support + */ +#include "tiffiop.h" +#include <stdio.h> + +#define STRIPINCR 20 /* expansion factor on strip array */ + +#define WRITECHECKSTRIPS(tif, module) \ + (((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),0,module)) +#define WRITECHECKTILES(tif, module) \ + (((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),1,module)) +#define BUFFERCHECK(tif) \ + ((((tif)->tif_flags & TIFF_BUFFERSETUP) && tif->tif_rawdata) || \ + TIFFWriteBufferSetup((tif), NULL, (tsize_t) -1)) + +static int TIFFGrowStrips(TIFF*, int, const char*); +static int TIFFAppendToStrip(TIFF*, tstrip_t, tidata_t, tsize_t); + +int +TIFFWriteScanline(TIFF* tif, tdata_t buf, uint32 row, tsample_t sample) +{ + static const char module[] = "TIFFWriteScanline"; + register TIFFDirectory *td; + int status, imagegrew = 0; + tstrip_t strip; + + if (!WRITECHECKSTRIPS(tif, module)) + return (-1); + /* + * Handle delayed allocation of data buffer. This + * permits it to be sized more intelligently (using + * directory information). + */ + if (!BUFFERCHECK(tif)) + return (-1); + td = &tif->tif_dir; + /* + * Extend image length if needed + * (but only for PlanarConfig=1). + */ + if (row >= td->td_imagelength) { /* extend image */ + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Can not change \"ImageLength\" when using separate planes"); + return (-1); + } + td->td_imagelength = row+1; + imagegrew = 1; + } + /* + * Calculate strip and check for crossings. + */ + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { + if (sample >= td->td_samplesperpixel) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "%d: Sample out of range, max %d", + sample, td->td_samplesperpixel); + return (-1); + } + strip = sample*td->td_stripsperimage + row/td->td_rowsperstrip; + } else + strip = row / td->td_rowsperstrip; + /* + * Check strip array to make sure there's space. We don't support + * dynamically growing files that have data organized in separate + * bitplanes because it's too painful. In that case we require that + * the imagelength be set properly before the first write (so that the + * strips array will be fully allocated above). + */ + if (strip >= td->td_nstrips && !TIFFGrowStrips(tif, 1, module)) + return (-1); + if (strip != tif->tif_curstrip) { + /* + * Changing strips -- flush any data present. + */ + if (!TIFFFlushData(tif)) + return (-1); + tif->tif_curstrip = strip; + /* + * Watch out for a growing image. The value of strips/image + * will initially be 1 (since it can't be deduced until the + * imagelength is known). + */ + if (strip >= td->td_stripsperimage && imagegrew) + td->td_stripsperimage = + TIFFhowmany(td->td_imagelength,td->td_rowsperstrip); + tif->tif_row = + (strip % td->td_stripsperimage) * td->td_rowsperstrip; + if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { + if (!(*tif->tif_setupencode)(tif)) + return (-1); + tif->tif_flags |= TIFF_CODERSETUP; + } + + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + + if( td->td_stripbytecount[strip] > 0 ) + { + /* if we are writing over existing tiles, zero length */ + td->td_stripbytecount[strip] = 0; + + /* this forces TIFFAppendToStrip() to do a seek */ + tif->tif_curoff = 0; + } + + if (!(*tif->tif_preencode)(tif, sample)) + return (-1); + tif->tif_flags |= TIFF_POSTENCODE; + } + /* + * Ensure the write is either sequential or at the + * beginning of a strip (or that we can randomly + * access the data -- i.e. no encoding). + */ + if (row != tif->tif_row) { + if (row < tif->tif_row) { + /* + * Moving backwards within the same strip: + * backup to the start and then decode + * forward (below). + */ + tif->tif_row = (strip % td->td_stripsperimage) * + td->td_rowsperstrip; + tif->tif_rawcp = tif->tif_rawdata; + } + /* + * Seek forward to the desired row. + */ + if (!(*tif->tif_seek)(tif, row - tif->tif_row)) + return (-1); + tif->tif_row = row; + } + + /* swab if needed - note that source buffer will be altered */ + tif->tif_postdecode( tif, (tidata_t) buf, tif->tif_scanlinesize ); + + status = (*tif->tif_encoderow)(tif, (tidata_t) buf, + tif->tif_scanlinesize, sample); + + /* we are now poised at the beginning of the next row */ + tif->tif_row = row + 1; + return (status); +} + +/* + * Encode the supplied data and write it to the + * specified strip. + * + * NB: Image length must be setup before writing. + */ +tsize_t +TIFFWriteEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t data, tsize_t cc) +{ + static const char module[] = "TIFFWriteEncodedStrip"; + TIFFDirectory *td = &tif->tif_dir; + tsample_t sample; + + if (!WRITECHECKSTRIPS(tif, module)) + return ((tsize_t) -1); + /* + * Check strip array to make sure there's space. + * We don't support dynamically growing files that + * have data organized in separate bitplanes because + * it's too painful. In that case we require that + * the imagelength be set properly before the first + * write (so that the strips array will be fully + * allocated above). + */ + if (strip >= td->td_nstrips) { + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Can not grow image by strips when using separate planes"); + return ((tsize_t) -1); + } + if (!TIFFGrowStrips(tif, 1, module)) + return ((tsize_t) -1); + td->td_stripsperimage = + TIFFhowmany(td->td_imagelength, td->td_rowsperstrip); + } + /* + * Handle delayed allocation of data buffer. This + * permits it to be sized according to the directory + * info. + */ + if (!BUFFERCHECK(tif)) + return ((tsize_t) -1); + tif->tif_curstrip = strip; + tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; + if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { + if (!(*tif->tif_setupencode)(tif)) + return ((tsize_t) -1); + tif->tif_flags |= TIFF_CODERSETUP; + } + + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + + if( td->td_stripbytecount[strip] > 0 ) + { + /* Force TIFFAppendToStrip() to consider placing data at end + of file. */ + tif->tif_curoff = 0; + } + + tif->tif_flags &= ~TIFF_POSTENCODE; + sample = (tsample_t)(strip / td->td_stripsperimage); + if (!(*tif->tif_preencode)(tif, sample)) + return ((tsize_t) -1); + + /* swab if needed - note that source buffer will be altered */ + tif->tif_postdecode( tif, (tidata_t) data, cc ); + + if (!(*tif->tif_encodestrip)(tif, (tidata_t) data, cc, sample)) + return ((tsize_t) 0); + if (!(*tif->tif_postencode)(tif)) + return ((tsize_t) -1); + if (!isFillOrder(tif, td->td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits(tif->tif_rawdata, tif->tif_rawcc); + if (tif->tif_rawcc > 0 && + !TIFFAppendToStrip(tif, strip, tif->tif_rawdata, tif->tif_rawcc)) + return ((tsize_t) -1); + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + return (cc); +} + +/* + * Write the supplied data to the specified strip. + * + * NB: Image length must be setup before writing. + */ +tsize_t +TIFFWriteRawStrip(TIFF* tif, tstrip_t strip, tdata_t data, tsize_t cc) +{ + static const char module[] = "TIFFWriteRawStrip"; + TIFFDirectory *td = &tif->tif_dir; + + if (!WRITECHECKSTRIPS(tif, module)) + return ((tsize_t) -1); + /* + * Check strip array to make sure there's space. + * We don't support dynamically growing files that + * have data organized in separate bitplanes because + * it's too painful. In that case we require that + * the imagelength be set properly before the first + * write (so that the strips array will be fully + * allocated above). + */ + if (strip >= td->td_nstrips) { + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, + "Can not grow image by strips when using separate planes"); + return ((tsize_t) -1); + } + /* + * Watch out for a growing image. The value of + * strips/image will initially be 1 (since it + * can't be deduced until the imagelength is known). + */ + if (strip >= td->td_stripsperimage) + td->td_stripsperimage = + TIFFhowmany(td->td_imagelength,td->td_rowsperstrip); + if (!TIFFGrowStrips(tif, 1, module)) + return ((tsize_t) -1); + } + tif->tif_curstrip = strip; + tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; + return (TIFFAppendToStrip(tif, strip, (tidata_t) data, cc) ? + cc : (tsize_t) -1); +} + +/* + * Write and compress a tile of data. The + * tile is selected by the (x,y,z,s) coordinates. + */ +tsize_t +TIFFWriteTile(TIFF* tif, + tdata_t buf, uint32 x, uint32 y, uint32 z, tsample_t s) +{ + if (!TIFFCheckTile(tif, x, y, z, s)) + return (-1); + /* + * NB: A tile size of -1 is used instead of tif_tilesize knowing + * that TIFFWriteEncodedTile will clamp this to the tile size. + * This is done because the tile size may not be defined until + * after the output buffer is setup in TIFFWriteBufferSetup. + */ + return (TIFFWriteEncodedTile(tif, + TIFFComputeTile(tif, x, y, z, s), buf, (tsize_t) -1)); +} + +/* + * Encode the supplied data and write it to the + * specified tile. There must be space for the + * data. The function clamps individual writes + * to a tile to the tile size, but does not (and + * can not) check that multiple writes to the same + * tile do not write more than tile size data. + * + * NB: Image length must be setup before writing; this + * interface does not support automatically growing + * the image on each write (as TIFFWriteScanline does). + */ +tsize_t +TIFFWriteEncodedTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc) +{ + static const char module[] = "TIFFWriteEncodedTile"; + TIFFDirectory *td; + tsample_t sample; + + if (!WRITECHECKTILES(tif, module)) + return ((tsize_t) -1); + td = &tif->tif_dir; + if (tile >= td->td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Tile %lu out of range, max %lu", + tif->tif_name, (unsigned long) tile, (unsigned long) td->td_nstrips); + return ((tsize_t) -1); + } + /* + * Handle delayed allocation of data buffer. This + * permits it to be sized more intelligently (using + * directory information). + */ + if (!BUFFERCHECK(tif)) + return ((tsize_t) -1); + tif->tif_curtile = tile; + + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + + if( td->td_stripbytecount[tile] > 0 ) + { + /* Force TIFFAppendToStrip() to consider placing data at end + of file. */ + tif->tif_curoff = 0; + } + + /* + * Compute tiles per row & per column to compute + * current row and column + */ + tif->tif_row = (tile % TIFFhowmany(td->td_imagelength, td->td_tilelength)) + * td->td_tilelength; + tif->tif_col = (tile % TIFFhowmany(td->td_imagewidth, td->td_tilewidth)) + * td->td_tilewidth; + + if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { + if (!(*tif->tif_setupencode)(tif)) + return ((tsize_t) -1); + tif->tif_flags |= TIFF_CODERSETUP; + } + tif->tif_flags &= ~TIFF_POSTENCODE; + sample = (tsample_t)(tile/td->td_stripsperimage); + if (!(*tif->tif_preencode)(tif, sample)) + return ((tsize_t) -1); + /* + * Clamp write amount to the tile size. This is mostly + * done so that callers can pass in some large number + * (e.g. -1) and have the tile size used instead. + */ + if ( cc < 1 || cc > tif->tif_tilesize) + cc = tif->tif_tilesize; + + /* swab if needed - note that source buffer will be altered */ + tif->tif_postdecode( tif, (tidata_t) data, cc ); + + if (!(*tif->tif_encodetile)(tif, (tidata_t) data, cc, sample)) + return ((tsize_t) 0); + if (!(*tif->tif_postencode)(tif)) + return ((tsize_t) -1); + if (!isFillOrder(tif, td->td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits((unsigned char *)tif->tif_rawdata, tif->tif_rawcc); + if (tif->tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile, + tif->tif_rawdata, tif->tif_rawcc)) + return ((tsize_t) -1); + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + return (cc); +} + +/* + * Write the supplied data to the specified strip. + * There must be space for the data; we don't check + * if strips overlap! + * + * NB: Image length must be setup before writing; this + * interface does not support automatically growing + * the image on each write (as TIFFWriteScanline does). + */ +tsize_t +TIFFWriteRawTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc) +{ + static const char module[] = "TIFFWriteRawTile"; + + if (!WRITECHECKTILES(tif, module)) + return ((tsize_t) -1); + if (tile >= tif->tif_dir.td_nstrips) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Tile %lu out of range, max %lu", + tif->tif_name, (unsigned long) tile, + (unsigned long) tif->tif_dir.td_nstrips); + return ((tsize_t) -1); + } + return (TIFFAppendToStrip(tif, tile, (tidata_t) data, cc) ? + cc : (tsize_t) -1); +} + +#define isUnspecified(tif, f) \ + (TIFFFieldSet(tif,f) && (tif)->tif_dir.td_imagelength == 0) + +int +TIFFSetupStrips(TIFF* tif) +{ + TIFFDirectory* td = &tif->tif_dir; + + if (isTiled(tif)) + td->td_stripsperimage = + isUnspecified(tif, FIELD_TILEDIMENSIONS) ? + td->td_samplesperpixel : TIFFNumberOfTiles(tif); + else + td->td_stripsperimage = + isUnspecified(tif, FIELD_ROWSPERSTRIP) ? + td->td_samplesperpixel : TIFFNumberOfStrips(tif); + td->td_nstrips = td->td_stripsperimage; + if (td->td_planarconfig == PLANARCONFIG_SEPARATE) + td->td_stripsperimage /= td->td_samplesperpixel; + td->td_stripoffset = (uint32 *) + _TIFFmalloc(td->td_nstrips * sizeof (uint32)); + td->td_stripbytecount = (uint32 *) + _TIFFmalloc(td->td_nstrips * sizeof (uint32)); + if (td->td_stripoffset == NULL || td->td_stripbytecount == NULL) + return (0); + /* + * Place data at the end-of-file + * (by setting offsets to zero). + */ + _TIFFmemset(td->td_stripoffset, 0, td->td_nstrips*sizeof (uint32)); + _TIFFmemset(td->td_stripbytecount, 0, td->td_nstrips*sizeof (uint32)); + TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); + TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); + return (1); +} +#undef isUnspecified + +/* + * Verify file is writable and that the directory + * information is setup properly. In doing the latter + * we also "freeze" the state of the directory so + * that important information is not changed. + */ +int +TIFFWriteCheck(TIFF* tif, int tiles, const char* module) +{ + if (tif->tif_mode == O_RDONLY) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: File not open for writing", + tif->tif_name); + return (0); + } + if (tiles ^ isTiled(tif)) { + TIFFErrorExt(tif->tif_clientdata, tif->tif_name, tiles ? + "Can not write tiles to a stripped image" : + "Can not write scanlines to a tiled image"); + return (0); + } + + /* + * On the first write verify all the required information + * has been setup and initialize any data structures that + * had to wait until directory information was set. + * Note that a lot of our work is assumed to remain valid + * because we disallow any of the important parameters + * from changing after we start writing (i.e. once + * TIFF_BEENWRITING is set, TIFFSetField will only allow + * the image's length to be changed). + */ + if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Must set \"ImageWidth\" before writing data", + tif->tif_name); + return (0); + } + if (tif->tif_dir.td_samplesperpixel == 1) { + /* + * Planarconfiguration is irrelevant in case of single band + * images and need not be included. We will set it anyway, + * because this field is used in other parts of library even + * in the single band case. + */ + if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) + tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; + } else { + if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Must set \"PlanarConfiguration\" before writing data", + tif->tif_name); + return (0); + } + } + if (tif->tif_dir.td_stripoffset == NULL && !TIFFSetupStrips(tif)) { + tif->tif_dir.td_nstrips = 0; + TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for %s arrays", + tif->tif_name, isTiled(tif) ? "tile" : "strip"); + return (0); + } + tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1; + tif->tif_scanlinesize = TIFFScanlineSize(tif); + tif->tif_flags |= TIFF_BEENWRITING; + return (1); +} + +/* + * Setup the raw data buffer used for encoding. + */ +int +TIFFWriteBufferSetup(TIFF* tif, tdata_t bp, tsize_t size) +{ + static const char module[] = "TIFFWriteBufferSetup"; + + if (tif->tif_rawdata) { + if (tif->tif_flags & TIFF_MYBUFFER) { + _TIFFfree(tif->tif_rawdata); + tif->tif_flags &= ~TIFF_MYBUFFER; + } + tif->tif_rawdata = NULL; + } + if (size == (tsize_t) -1) { + size = (isTiled(tif) ? + tif->tif_tilesize : TIFFStripSize(tif)); + /* + * Make raw data buffer at least 8K + */ + if (size < 8*1024) + size = 8*1024; + bp = NULL; /* NB: force malloc */ + } + if (bp == NULL) { + bp = _TIFFmalloc(size); + if (bp == NULL) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for output buffer", + tif->tif_name); + return (0); + } + tif->tif_flags |= TIFF_MYBUFFER; + } else + tif->tif_flags &= ~TIFF_MYBUFFER; + tif->tif_rawdata = (tidata_t) bp; + tif->tif_rawdatasize = size; + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + tif->tif_flags |= TIFF_BUFFERSETUP; + return (1); +} + +/* + * Grow the strip data structures by delta strips. + */ +static int +TIFFGrowStrips(TIFF* tif, int delta, const char* module) +{ + TIFFDirectory *td = &tif->tif_dir; + uint32 *new_stripoffset, *new_stripbytecount; + + assert(td->td_planarconfig == PLANARCONFIG_CONTIG); + new_stripoffset = (uint32*)_TIFFrealloc(td->td_stripoffset, + (td->td_nstrips + delta) * sizeof (uint32)); + new_stripbytecount = (uint32*)_TIFFrealloc(td->td_stripbytecount, + (td->td_nstrips + delta) * sizeof (uint32)); + if (new_stripoffset == NULL || new_stripbytecount == NULL) { + if (new_stripoffset) + _TIFFfree(new_stripoffset); + if (new_stripbytecount) + _TIFFfree(new_stripbytecount); + td->td_nstrips = 0; + TIFFErrorExt(tif->tif_clientdata, module, "%s: No space to expand strip arrays", + tif->tif_name); + return (0); + } + td->td_stripoffset = new_stripoffset; + td->td_stripbytecount = new_stripbytecount; + _TIFFmemset(td->td_stripoffset + td->td_nstrips, + 0, delta*sizeof (uint32)); + _TIFFmemset(td->td_stripbytecount + td->td_nstrips, + 0, delta*sizeof (uint32)); + td->td_nstrips += delta; + return (1); +} + +/* + * Append the data to the specified strip. + */ +static int +TIFFAppendToStrip(TIFF* tif, tstrip_t strip, tidata_t data, tsize_t cc) +{ + static const char module[] = "TIFFAppendToStrip"; + TIFFDirectory *td = &tif->tif_dir; + + if (td->td_stripoffset[strip] == 0 || tif->tif_curoff == 0) { + assert(td->td_nstrips > 0); + + if( td->td_stripbytecount[strip] != 0 + && td->td_stripoffset[strip] != 0 + && td->td_stripbytecount[strip] >= cc ) + { + /* + * There is already tile data on disk, and the new tile + * data we have to will fit in the same space. The only + * aspect of this that is risky is that there could be + * more data to append to this strip before we are done + * depending on how we are getting called. + */ + if (!SeekOK(tif, td->td_stripoffset[strip])) { + TIFFErrorExt(tif->tif_clientdata, module, + "Seek error at scanline %lu", + (unsigned long)tif->tif_row); + return (0); + } + } + else + { + /* + * Seek to end of file, and set that as our location to + * write this strip. + */ + td->td_stripoffset[strip] = TIFFSeekFile(tif, 0, SEEK_END); + } + + tif->tif_curoff = td->td_stripoffset[strip]; + + /* + * We are starting a fresh strip/tile, so set the size to zero. + */ + td->td_stripbytecount[strip] = 0; + } + + if (!WriteOK(tif, data, cc)) { + TIFFErrorExt(tif->tif_clientdata, module, "Write error at scanline %lu", + (unsigned long) tif->tif_row); + return (0); + } + tif->tif_curoff = tif->tif_curoff+cc; + td->td_stripbytecount[strip] += cc; + return (1); +} + +/* + * Internal version of TIFFFlushData that can be + * called by ``encodestrip routines'' w/o concern + * for infinite recursion. + */ +int +TIFFFlushData1(TIFF* tif) +{ + if (tif->tif_rawcc > 0) { + if (!isFillOrder(tif, tif->tif_dir.td_fillorder) && + (tif->tif_flags & TIFF_NOBITREV) == 0) + TIFFReverseBits((unsigned char *)tif->tif_rawdata, + tif->tif_rawcc); + if (!TIFFAppendToStrip(tif, + isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip, + tif->tif_rawdata, tif->tif_rawcc)) + return (0); + tif->tif_rawcc = 0; + tif->tif_rawcp = tif->tif_rawdata; + } + return (1); +} + +/* + * Set the current write offset. This should only be + * used to set the offset to a known previous location + * (very carefully), or to 0 so that the next write gets + * appended to the end of the file. + */ +void +TIFFSetWriteOffset(TIFF* tif, toff_t off) +{ + tif->tif_curoff = off; +} + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tif_zip.c b/tiff/libtiff/tif_zip.c new file mode 100644 index 0000000..15091f8 --- /dev/null +++ b/tiff/libtiff/tif_zip.c @@ -0,0 +1,419 @@ +/* $Id: tif_zip.c,v 1.11.2.4 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1995-1997 Sam Leffler + * Copyright (c) 1995-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tiffiop.h" +#ifdef ZIP_SUPPORT +/* + * TIFF Library. + * + * ZIP (aka Deflate) Compression Support + * + * This file is simply an interface to the zlib library written by + * Jean-loup Gailly and Mark Adler. You must use version 1.0 or later + * of the library: this code assumes the 1.0 API and also depends on + * the ability to write the zlib header multiple times (one per strip) + * which was not possible with versions prior to 0.95. Note also that + * older versions of this codec avoided this bug by supressing the header + * entirely. This means that files written with the old library cannot + * be read; they should be converted to a different compression scheme + * and then reconverted. + * + * The data format used by the zlib library is described in the files + * zlib-3.1.doc, deflate-1.1.doc and gzip-4.1.doc, available in the + * directory ftp://ftp.uu.net/pub/archiving/zip/doc. The library was + * last found at ftp://ftp.uu.net/pub/archiving/zip/zlib/zlib-0.99.tar.gz. + */ +#include "tif_predict.h" +#include "zlib.h" + +#include <stdio.h> + +/* + * Sigh, ZLIB_VERSION is defined as a string so there's no + * way to do a proper check here. Instead we guess based + * on the presence of #defines that were added between the + * 0.95 and 1.0 distributions. + */ +#if !defined(Z_NO_COMPRESSION) || !defined(Z_DEFLATED) +#error "Antiquated ZLIB software; you must use version 1.0 or later" +#endif + +/* + * State block for each open TIFF + * file using ZIP compression/decompression. + */ +typedef struct { + TIFFPredictorState predict; + z_stream stream; + int zipquality; /* compression level */ + int state; /* state flags */ +#define ZSTATE_INIT_DECODE 0x01 +#define ZSTATE_INIT_ENCODE 0x02 + + TIFFVGetMethod vgetparent; /* super-class method */ + TIFFVSetMethod vsetparent; /* super-class method */ +} ZIPState; + +#define ZState(tif) ((ZIPState*) (tif)->tif_data) +#define DecoderState(tif) ZState(tif) +#define EncoderState(tif) ZState(tif) + +static int ZIPEncode(TIFF*, tidata_t, tsize_t, tsample_t); +static int ZIPDecode(TIFF*, tidata_t, tsize_t, tsample_t); + +static int +ZIPSetupDecode(TIFF* tif) +{ + ZIPState* sp = DecoderState(tif); + static const char module[] = "ZIPSetupDecode"; + + assert(sp != NULL); + + /* if we were last encoding, terminate this mode */ + if (sp->state & ZSTATE_INIT_ENCODE) { + deflateEnd(&sp->stream); + sp->state = 0; + } + + if (inflateInit(&sp->stream) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: %s", tif->tif_name, sp->stream.msg); + return (0); + } else { + sp->state |= ZSTATE_INIT_DECODE; + return (1); + } +} + +/* + * Setup state for decoding a strip. + */ +static int +ZIPPreDecode(TIFF* tif, tsample_t s) +{ + ZIPState* sp = DecoderState(tif); + + (void) s; + assert(sp != NULL); + + if( (sp->state & ZSTATE_INIT_DECODE) == 0 ) + tif->tif_setupdecode( tif ); + + sp->stream.next_in = tif->tif_rawdata; + sp->stream.avail_in = tif->tif_rawcc; + return (inflateReset(&sp->stream) == Z_OK); +} + +static int +ZIPDecode(TIFF* tif, tidata_t op, tsize_t occ, tsample_t s) +{ + ZIPState* sp = DecoderState(tif); + static const char module[] = "ZIPDecode"; + + (void) s; + assert(sp != NULL); + assert(sp->state == ZSTATE_INIT_DECODE); + + sp->stream.next_out = op; + sp->stream.avail_out = occ; + do { + int state = inflate(&sp->stream, Z_PARTIAL_FLUSH); + if (state == Z_STREAM_END) + break; + if (state == Z_DATA_ERROR) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Decoding error at scanline %d, %s", + tif->tif_name, tif->tif_row, sp->stream.msg); + if (inflateSync(&sp->stream) != Z_OK) + return (0); + continue; + } + if (state != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + } while (sp->stream.avail_out > 0); + if (sp->stream.avail_out != 0) { + TIFFErrorExt(tif->tif_clientdata, module, + "%s: Not enough data at scanline %d (short %d bytes)", + tif->tif_name, tif->tif_row, sp->stream.avail_out); + return (0); + } + return (1); +} + +static int +ZIPSetupEncode(TIFF* tif) +{ + ZIPState* sp = EncoderState(tif); + static const char module[] = "ZIPSetupEncode"; + + assert(sp != NULL); + if (sp->state & ZSTATE_INIT_DECODE) { + inflateEnd(&sp->stream); + sp->state = 0; + } + + if (deflateInit(&sp->stream, sp->zipquality) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: %s", tif->tif_name, sp->stream.msg); + return (0); + } else { + sp->state |= ZSTATE_INIT_ENCODE; + return (1); + } +} + +/* + * Reset encoding state at the start of a strip. + */ +static int +ZIPPreEncode(TIFF* tif, tsample_t s) +{ + ZIPState *sp = EncoderState(tif); + + (void) s; + assert(sp != NULL); + if( sp->state != ZSTATE_INIT_ENCODE ) + tif->tif_setupencode( tif ); + + sp->stream.next_out = tif->tif_rawdata; + sp->stream.avail_out = tif->tif_rawdatasize; + return (deflateReset(&sp->stream) == Z_OK); +} + +/* + * Encode a chunk of pixels. + */ +static int +ZIPEncode(TIFF* tif, tidata_t bp, tsize_t cc, tsample_t s) +{ + ZIPState *sp = EncoderState(tif); + static const char module[] = "ZIPEncode"; + + assert(sp != NULL); + assert(sp->state == ZSTATE_INIT_ENCODE); + + (void) s; + sp->stream.next_in = bp; + sp->stream.avail_in = cc; + do { + if (deflate(&sp->stream, Z_NO_FLUSH) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: Encoder error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + if (sp->stream.avail_out == 0) { + tif->tif_rawcc = tif->tif_rawdatasize; + TIFFFlushData1(tif); + sp->stream.next_out = tif->tif_rawdata; + sp->stream.avail_out = tif->tif_rawdatasize; + } + } while (sp->stream.avail_in > 0); + return (1); +} + +/* + * Finish off an encoded strip by flushing the last + * string and tacking on an End Of Information code. + */ +static int +ZIPPostEncode(TIFF* tif) +{ + ZIPState *sp = EncoderState(tif); + static const char module[] = "ZIPPostEncode"; + int state; + + sp->stream.avail_in = 0; + do { + state = deflate(&sp->stream, Z_FINISH); + switch (state) { + case Z_STREAM_END: + case Z_OK: + if ((int)sp->stream.avail_out != (int)tif->tif_rawdatasize) + { + tif->tif_rawcc = + tif->tif_rawdatasize - sp->stream.avail_out; + TIFFFlushData1(tif); + sp->stream.next_out = tif->tif_rawdata; + sp->stream.avail_out = tif->tif_rawdatasize; + } + break; + default: + TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + } while (state != Z_STREAM_END); + return (1); +} + +static void +ZIPCleanup(TIFF* tif) +{ + ZIPState* sp = ZState(tif); + + assert(sp != 0); + + (void)TIFFPredictorCleanup(tif); + + tif->tif_tagmethods.vgetfield = sp->vgetparent; + tif->tif_tagmethods.vsetfield = sp->vsetparent; + + if (sp->state & ZSTATE_INIT_ENCODE) { + deflateEnd(&sp->stream); + sp->state = 0; + } else if( sp->state & ZSTATE_INIT_DECODE) { + inflateEnd(&sp->stream); + sp->state = 0; + } + _TIFFfree(sp); + tif->tif_data = NULL; + + _TIFFSetDefaultCompressionState(tif); +} + +static int +ZIPVSetField(TIFF* tif, ttag_t tag, va_list ap) +{ + ZIPState* sp = ZState(tif); + static const char module[] = "ZIPVSetField"; + + switch (tag) { + case TIFFTAG_ZIPQUALITY: + sp->zipquality = va_arg(ap, int); + if ( sp->state&ZSTATE_INIT_ENCODE ) { + if (deflateParams(&sp->stream, + sp->zipquality, Z_DEFAULT_STRATEGY) != Z_OK) { + TIFFErrorExt(tif->tif_clientdata, module, "%s: zlib error: %s", + tif->tif_name, sp->stream.msg); + return (0); + } + } + return (1); + default: + return (*sp->vsetparent)(tif, tag, ap); + } + /*NOTREACHED*/ +} + +static int +ZIPVGetField(TIFF* tif, ttag_t tag, va_list ap) +{ + ZIPState* sp = ZState(tif); + + switch (tag) { + case TIFFTAG_ZIPQUALITY: + *va_arg(ap, int*) = sp->zipquality; + break; + default: + return (*sp->vgetparent)(tif, tag, ap); + } + return (1); +} + +static const TIFFFieldInfo zipFieldInfo[] = { + { TIFFTAG_ZIPQUALITY, 0, 0, TIFF_ANY, FIELD_PSEUDO, + TRUE, FALSE, "" }, +}; + +int +TIFFInitZIP(TIFF* tif, int scheme) +{ + static const char module[] = "TIFFInitZIP"; + ZIPState* sp; + + assert( (scheme == COMPRESSION_DEFLATE) + || (scheme == COMPRESSION_ADOBE_DEFLATE)); + + /* + * Merge codec-specific tag information. + */ + if (!_TIFFMergeFieldInfo(tif, zipFieldInfo, + TIFFArrayCount(zipFieldInfo))) { + TIFFErrorExt(tif->tif_clientdata, module, + "Merging Deflate codec-specific tags failed"); + return 0; + } + + /* + * Allocate state block so tag methods have storage to record values. + */ + tif->tif_data = (tidata_t) _TIFFmalloc(sizeof (ZIPState)); + if (tif->tif_data == NULL) + goto bad; + sp = ZState(tif); + sp->stream.zalloc = NULL; + sp->stream.zfree = NULL; + sp->stream.opaque = NULL; + sp->stream.data_type = Z_BINARY; + + /* + * Override parent get/set field methods. + */ + sp->vgetparent = tif->tif_tagmethods.vgetfield; + tif->tif_tagmethods.vgetfield = ZIPVGetField; /* hook for codec tags */ + sp->vsetparent = tif->tif_tagmethods.vsetfield; + tif->tif_tagmethods.vsetfield = ZIPVSetField; /* hook for codec tags */ + + /* Default values for codec-specific fields */ + sp->zipquality = Z_DEFAULT_COMPRESSION; /* default comp. level */ + sp->state = 0; + + /* + * Install codec methods. + */ + tif->tif_setupdecode = ZIPSetupDecode; + tif->tif_predecode = ZIPPreDecode; + tif->tif_decoderow = ZIPDecode; + tif->tif_decodestrip = ZIPDecode; + tif->tif_decodetile = ZIPDecode; + tif->tif_setupencode = ZIPSetupEncode; + tif->tif_preencode = ZIPPreEncode; + tif->tif_postencode = ZIPPostEncode; + tif->tif_encoderow = ZIPEncode; + tif->tif_encodestrip = ZIPEncode; + tif->tif_encodetile = ZIPEncode; + tif->tif_cleanup = ZIPCleanup; + /* + * Setup predictor setup. + */ + (void) TIFFPredictorInit(tif); + return (1); +bad: + TIFFErrorExt(tif->tif_clientdata, module, + "No space for ZIP state block"); + return (0); +} +#endif /* ZIP_SUPORT */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiff.h b/tiff/libtiff/tiff.h new file mode 100644 index 0000000..0d4ab9f --- /dev/null +++ b/tiff/libtiff/tiff.h @@ -0,0 +1,654 @@ +/* $Id: tiff.h,v 1.43.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _TIFF_ +#define _TIFF_ + +#include "tiffconf.h" + +/* + * Tag Image File Format (TIFF) + * + * Based on Rev 6.0 from: + * Developer's Desk + * Aldus Corporation + * 411 First Ave. South + * Suite 200 + * Seattle, WA 98104 + * 206-622-5500 + * + * (http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf) + * + * For Big TIFF design notes see the following link + * http://www.remotesensing.org/libtiff/bigtiffdesign.html + */ +#define TIFF_VERSION 42 +#define TIFF_BIGTIFF_VERSION 43 + +#define TIFF_BIGENDIAN 0x4d4d +#define TIFF_LITTLEENDIAN 0x4949 +#define MDI_LITTLEENDIAN 0x5045 +#define MDI_BIGENDIAN 0x4550 +/* + * Intrinsic data types required by the file format: + * + * 8-bit quantities int8/uint8 + * 16-bit quantities int16/uint16 + * 32-bit quantities int32/uint32 + * strings unsigned char* + */ + +#ifndef HAVE_INT8 +typedef signed char int8; /* NB: non-ANSI compilers may not grok */ +#endif +typedef unsigned char uint8; +#ifndef HAVE_INT16 +typedef short int16; +#endif +typedef unsigned short uint16; /* sizeof (uint16) must == 2 */ +#if SIZEOF_INT == 4 +#ifndef HAVE_INT32 +typedef int int32; +#endif +typedef unsigned int uint32; /* sizeof (uint32) must == 4 */ +#elif SIZEOF_LONG == 4 +#ifndef HAVE_INT32 +typedef long int32; +#endif +typedef unsigned long uint32; /* sizeof (uint32) must == 4 */ +#endif + +/* For TIFFReassignTagToIgnore */ +enum TIFFIgnoreSense /* IGNORE tag table */ +{ + TIS_STORE, + TIS_EXTRACT, + TIS_EMPTY +}; + +/* + * TIFF header. + */ +typedef struct { + uint16 tiff_magic; /* magic number (defines byte order) */ +#define TIFF_MAGIC_SIZE 2 + uint16 tiff_version; /* TIFF version number */ +#define TIFF_VERSION_SIZE 2 + uint32 tiff_diroff; /* byte offset to first directory */ +#define TIFF_DIROFFSET_SIZE 4 +} TIFFHeader; + + +/* + * TIFF Image File Directories are comprised of a table of field + * descriptors of the form shown below. The table is sorted in + * ascending order by tag. The values associated with each entry are + * disjoint and may appear anywhere in the file (so long as they are + * placed on a word boundary). + * + * If the value is 4 bytes or less, then it is placed in the offset + * field to save space. If the value is less than 4 bytes, it is + * left-justified in the offset field. + */ +typedef struct { + uint16 tdir_tag; /* see below */ + uint16 tdir_type; /* data type; see below */ + uint32 tdir_count; /* number of items; length in spec */ + uint32 tdir_offset; /* byte offset to field data */ +} TIFFDirEntry; + +/* + * NB: In the comments below, + * - items marked with a + are obsoleted by revision 5.0, + * - items marked with a ! are introduced in revision 6.0. + * - items marked with a % are introduced post revision 6.0. + * - items marked with a $ are obsoleted by revision 6.0. + * - items marked with a & are introduced by Adobe DNG specification. + */ + +/* + * Tag data type information. + * + * Note: RATIONALs are the ratio of two 32-bit integer values. + */ +typedef enum { + TIFF_NOTYPE = 0, /* placeholder */ + TIFF_BYTE = 1, /* 8-bit unsigned integer */ + TIFF_ASCII = 2, /* 8-bit bytes w/ last byte null */ + TIFF_SHORT = 3, /* 16-bit unsigned integer */ + TIFF_LONG = 4, /* 32-bit unsigned integer */ + TIFF_RATIONAL = 5, /* 64-bit unsigned fraction */ + TIFF_SBYTE = 6, /* !8-bit signed integer */ + TIFF_UNDEFINED = 7, /* !8-bit untyped data */ + TIFF_SSHORT = 8, /* !16-bit signed integer */ + TIFF_SLONG = 9, /* !32-bit signed integer */ + TIFF_SRATIONAL = 10, /* !64-bit signed fraction */ + TIFF_FLOAT = 11, /* !32-bit IEEE floating point */ + TIFF_DOUBLE = 12, /* !64-bit IEEE floating point */ + TIFF_IFD = 13 /* %32-bit unsigned integer (offset) */ +} TIFFDataType; + +/* + * TIFF Tag Definitions. + */ +#define TIFFTAG_SUBFILETYPE 254 /* subfile data descriptor */ +#define FILETYPE_REDUCEDIMAGE 0x1 /* reduced resolution version */ +#define FILETYPE_PAGE 0x2 /* one page of many */ +#define FILETYPE_MASK 0x4 /* transparency mask */ +#define TIFFTAG_OSUBFILETYPE 255 /* +kind of data in subfile */ +#define OFILETYPE_IMAGE 1 /* full resolution image data */ +#define OFILETYPE_REDUCEDIMAGE 2 /* reduced size image data */ +#define OFILETYPE_PAGE 3 /* one page of many */ +#define TIFFTAG_IMAGEWIDTH 256 /* image width in pixels */ +#define TIFFTAG_IMAGELENGTH 257 /* image height in pixels */ +#define TIFFTAG_BITSPERSAMPLE 258 /* bits per channel (sample) */ +#define TIFFTAG_COMPRESSION 259 /* data compression technique */ +#define COMPRESSION_NONE 1 /* dump mode */ +#define COMPRESSION_CCITTRLE 2 /* CCITT modified Huffman RLE */ +#define COMPRESSION_CCITTFAX3 3 /* CCITT Group 3 fax encoding */ +#define COMPRESSION_CCITT_T4 3 /* CCITT T.4 (TIFF 6 name) */ +#define COMPRESSION_CCITTFAX4 4 /* CCITT Group 4 fax encoding */ +#define COMPRESSION_CCITT_T6 4 /* CCITT T.6 (TIFF 6 name) */ +#define COMPRESSION_LZW 5 /* Lempel-Ziv & Welch */ +#define COMPRESSION_OJPEG 6 /* !6.0 JPEG */ +#define COMPRESSION_JPEG 7 /* %JPEG DCT compression */ +#define COMPRESSION_NEXT 32766 /* NeXT 2-bit RLE */ +#define COMPRESSION_CCITTRLEW 32771 /* #1 w/ word alignment */ +#define COMPRESSION_PACKBITS 32773 /* Macintosh RLE */ +#define COMPRESSION_THUNDERSCAN 32809 /* ThunderScan RLE */ +/* codes 32895-32898 are reserved for ANSI IT8 TIFF/IT <dkelly@apago.com) */ +#define COMPRESSION_IT8CTPAD 32895 /* IT8 CT w/padding */ +#define COMPRESSION_IT8LW 32896 /* IT8 Linework RLE */ +#define COMPRESSION_IT8MP 32897 /* IT8 Monochrome picture */ +#define COMPRESSION_IT8BL 32898 /* IT8 Binary line art */ +/* compression codes 32908-32911 are reserved for Pixar */ +#define COMPRESSION_PIXARFILM 32908 /* Pixar companded 10bit LZW */ +#define COMPRESSION_PIXARLOG 32909 /* Pixar companded 11bit ZIP */ +#define COMPRESSION_DEFLATE 32946 /* Deflate compression */ +#define COMPRESSION_ADOBE_DEFLATE 8 /* Deflate compression, + as recognized by Adobe */ +/* compression code 32947 is reserved for Oceana Matrix <dev@oceana.com> */ +#define COMPRESSION_DCS 32947 /* Kodak DCS encoding */ +#define COMPRESSION_JBIG 34661 /* ISO JBIG */ +#define COMPRESSION_SGILOG 34676 /* SGI Log Luminance RLE */ +#define COMPRESSION_SGILOG24 34677 /* SGI Log 24-bit packed */ +#define COMPRESSION_JP2000 34712 /* Leadtools JPEG2000 */ +#define TIFFTAG_PHOTOMETRIC 262 /* photometric interpretation */ +#define PHOTOMETRIC_MINISWHITE 0 /* min value is white */ +#define PHOTOMETRIC_MINISBLACK 1 /* min value is black */ +#define PHOTOMETRIC_RGB 2 /* RGB color model */ +#define PHOTOMETRIC_PALETTE 3 /* color map indexed */ +#define PHOTOMETRIC_MASK 4 /* $holdout mask */ +#define PHOTOMETRIC_SEPARATED 5 /* !color separations */ +#define PHOTOMETRIC_YCBCR 6 /* !CCIR 601 */ +#define PHOTOMETRIC_CIELAB 8 /* !1976 CIE L*a*b* */ +#define PHOTOMETRIC_ICCLAB 9 /* ICC L*a*b* [Adobe TIFF Technote 4] */ +#define PHOTOMETRIC_ITULAB 10 /* ITU L*a*b* */ +#define PHOTOMETRIC_LOGL 32844 /* CIE Log2(L) */ +#define PHOTOMETRIC_LOGLUV 32845 /* CIE Log2(L) (u',v') */ +#define TIFFTAG_THRESHHOLDING 263 /* +thresholding used on data */ +#define THRESHHOLD_BILEVEL 1 /* b&w art scan */ +#define THRESHHOLD_HALFTONE 2 /* or dithered scan */ +#define THRESHHOLD_ERRORDIFFUSE 3 /* usually floyd-steinberg */ +#define TIFFTAG_CELLWIDTH 264 /* +dithering matrix width */ +#define TIFFTAG_CELLLENGTH 265 /* +dithering matrix height */ +#define TIFFTAG_FILLORDER 266 /* data order within a byte */ +#define FILLORDER_MSB2LSB 1 /* most significant -> least */ +#define FILLORDER_LSB2MSB 2 /* least significant -> most */ +#define TIFFTAG_DOCUMENTNAME 269 /* name of doc. image is from */ +#define TIFFTAG_IMAGEDESCRIPTION 270 /* info about image */ +#define TIFFTAG_MAKE 271 /* scanner manufacturer name */ +#define TIFFTAG_MODEL 272 /* scanner model name/number */ +#define TIFFTAG_STRIPOFFSETS 273 /* offsets to data strips */ +#define TIFFTAG_ORIENTATION 274 /* +image orientation */ +#define ORIENTATION_TOPLEFT 1 /* row 0 top, col 0 lhs */ +#define ORIENTATION_TOPRIGHT 2 /* row 0 top, col 0 rhs */ +#define ORIENTATION_BOTRIGHT 3 /* row 0 bottom, col 0 rhs */ +#define ORIENTATION_BOTLEFT 4 /* row 0 bottom, col 0 lhs */ +#define ORIENTATION_LEFTTOP 5 /* row 0 lhs, col 0 top */ +#define ORIENTATION_RIGHTTOP 6 /* row 0 rhs, col 0 top */ +#define ORIENTATION_RIGHTBOT 7 /* row 0 rhs, col 0 bottom */ +#define ORIENTATION_LEFTBOT 8 /* row 0 lhs, col 0 bottom */ +#define TIFFTAG_SAMPLESPERPIXEL 277 /* samples per pixel */ +#define TIFFTAG_ROWSPERSTRIP 278 /* rows per strip of data */ +#define TIFFTAG_STRIPBYTECOUNTS 279 /* bytes counts for strips */ +#define TIFFTAG_MINSAMPLEVALUE 280 /* +minimum sample value */ +#define TIFFTAG_MAXSAMPLEVALUE 281 /* +maximum sample value */ +#define TIFFTAG_XRESOLUTION 282 /* pixels/resolution in x */ +#define TIFFTAG_YRESOLUTION 283 /* pixels/resolution in y */ +#define TIFFTAG_PLANARCONFIG 284 /* storage organization */ +#define PLANARCONFIG_CONTIG 1 /* single image plane */ +#define PLANARCONFIG_SEPARATE 2 /* separate planes of data */ +#define TIFFTAG_PAGENAME 285 /* page name image is from */ +#define TIFFTAG_XPOSITION 286 /* x page offset of image lhs */ +#define TIFFTAG_YPOSITION 287 /* y page offset of image lhs */ +#define TIFFTAG_FREEOFFSETS 288 /* +byte offset to free block */ +#define TIFFTAG_FREEBYTECOUNTS 289 /* +sizes of free blocks */ +#define TIFFTAG_GRAYRESPONSEUNIT 290 /* $gray scale curve accuracy */ +#define GRAYRESPONSEUNIT_10S 1 /* tenths of a unit */ +#define GRAYRESPONSEUNIT_100S 2 /* hundredths of a unit */ +#define GRAYRESPONSEUNIT_1000S 3 /* thousandths of a unit */ +#define GRAYRESPONSEUNIT_10000S 4 /* ten-thousandths of a unit */ +#define GRAYRESPONSEUNIT_100000S 5 /* hundred-thousandths */ +#define TIFFTAG_GRAYRESPONSECURVE 291 /* $gray scale response curve */ +#define TIFFTAG_GROUP3OPTIONS 292 /* 32 flag bits */ +#define TIFFTAG_T4OPTIONS 292 /* TIFF 6.0 proper name alias */ +#define GROUP3OPT_2DENCODING 0x1 /* 2-dimensional coding */ +#define GROUP3OPT_UNCOMPRESSED 0x2 /* data not compressed */ +#define GROUP3OPT_FILLBITS 0x4 /* fill to byte boundary */ +#define TIFFTAG_GROUP4OPTIONS 293 /* 32 flag bits */ +#define TIFFTAG_T6OPTIONS 293 /* TIFF 6.0 proper name */ +#define GROUP4OPT_UNCOMPRESSED 0x2 /* data not compressed */ +#define TIFFTAG_RESOLUTIONUNIT 296 /* units of resolutions */ +#define RESUNIT_NONE 1 /* no meaningful units */ +#define RESUNIT_INCH 2 /* english */ +#define RESUNIT_CENTIMETER 3 /* metric */ +#define TIFFTAG_PAGENUMBER 297 /* page numbers of multi-page */ +#define TIFFTAG_COLORRESPONSEUNIT 300 /* $color curve accuracy */ +#define COLORRESPONSEUNIT_10S 1 /* tenths of a unit */ +#define COLORRESPONSEUNIT_100S 2 /* hundredths of a unit */ +#define COLORRESPONSEUNIT_1000S 3 /* thousandths of a unit */ +#define COLORRESPONSEUNIT_10000S 4 /* ten-thousandths of a unit */ +#define COLORRESPONSEUNIT_100000S 5 /* hundred-thousandths */ +#define TIFFTAG_TRANSFERFUNCTION 301 /* !colorimetry info */ +#define TIFFTAG_SOFTWARE 305 /* name & release */ +#define TIFFTAG_DATETIME 306 /* creation date and time */ +#define TIFFTAG_ARTIST 315 /* creator of image */ +#define TIFFTAG_HOSTCOMPUTER 316 /* machine where created */ +#define TIFFTAG_PREDICTOR 317 /* prediction scheme w/ LZW */ +#define PREDICTOR_NONE 1 /* no prediction scheme used */ +#define PREDICTOR_HORIZONTAL 2 /* horizontal differencing */ +#define PREDICTOR_FLOATINGPOINT 3 /* floating point predictor */ +#define TIFFTAG_WHITEPOINT 318 /* image white point */ +#define TIFFTAG_PRIMARYCHROMATICITIES 319 /* !primary chromaticities */ +#define TIFFTAG_COLORMAP 320 /* RGB map for pallette image */ +#define TIFFTAG_HALFTONEHINTS 321 /* !highlight+shadow info */ +#define TIFFTAG_TILEWIDTH 322 /* !tile width in pixels */ +#define TIFFTAG_TILELENGTH 323 /* !tile height in pixels */ +#define TIFFTAG_TILEOFFSETS 324 /* !offsets to data tiles */ +#define TIFFTAG_TILEBYTECOUNTS 325 /* !byte counts for tiles */ +#define TIFFTAG_BADFAXLINES 326 /* lines w/ wrong pixel count */ +#define TIFFTAG_CLEANFAXDATA 327 /* regenerated line info */ +#define CLEANFAXDATA_CLEAN 0 /* no errors detected */ +#define CLEANFAXDATA_REGENERATED 1 /* receiver regenerated lines */ +#define CLEANFAXDATA_UNCLEAN 2 /* uncorrected errors exist */ +#define TIFFTAG_CONSECUTIVEBADFAXLINES 328 /* max consecutive bad lines */ +#define TIFFTAG_SUBIFD 330 /* subimage descriptors */ +#define TIFFTAG_INKSET 332 /* !inks in separated image */ +#define INKSET_CMYK 1 /* !cyan-magenta-yellow-black color */ +#define INKSET_MULTIINK 2 /* !multi-ink or hi-fi color */ +#define TIFFTAG_INKNAMES 333 /* !ascii names of inks */ +#define TIFFTAG_NUMBEROFINKS 334 /* !number of inks */ +#define TIFFTAG_DOTRANGE 336 /* !0% and 100% dot codes */ +#define TIFFTAG_TARGETPRINTER 337 /* !separation target */ +#define TIFFTAG_EXTRASAMPLES 338 /* !info about extra samples */ +#define EXTRASAMPLE_UNSPECIFIED 0 /* !unspecified data */ +#define EXTRASAMPLE_ASSOCALPHA 1 /* !associated alpha data */ +#define EXTRASAMPLE_UNASSALPHA 2 /* !unassociated alpha data */ +#define TIFFTAG_SAMPLEFORMAT 339 /* !data sample format */ +#define SAMPLEFORMAT_UINT 1 /* !unsigned integer data */ +#define SAMPLEFORMAT_INT 2 /* !signed integer data */ +#define SAMPLEFORMAT_IEEEFP 3 /* !IEEE floating point data */ +#define SAMPLEFORMAT_VOID 4 /* !untyped data */ +#define SAMPLEFORMAT_COMPLEXINT 5 /* !complex signed int */ +#define SAMPLEFORMAT_COMPLEXIEEEFP 6 /* !complex ieee floating */ +#define TIFFTAG_SMINSAMPLEVALUE 340 /* !variable MinSampleValue */ +#define TIFFTAG_SMAXSAMPLEVALUE 341 /* !variable MaxSampleValue */ +#define TIFFTAG_CLIPPATH 343 /* %ClipPath + [Adobe TIFF technote 2] */ +#define TIFFTAG_XCLIPPATHUNITS 344 /* %XClipPathUnits + [Adobe TIFF technote 2] */ +#define TIFFTAG_YCLIPPATHUNITS 345 /* %YClipPathUnits + [Adobe TIFF technote 2] */ +#define TIFFTAG_INDEXED 346 /* %Indexed + [Adobe TIFF Technote 3] */ +#define TIFFTAG_JPEGTABLES 347 /* %JPEG table stream */ +#define TIFFTAG_OPIPROXY 351 /* %OPI Proxy [Adobe TIFF technote] */ +/* + * Tags 512-521 are obsoleted by Technical Note #2 which specifies a + * revised JPEG-in-TIFF scheme. + */ +#define TIFFTAG_JPEGPROC 512 /* !JPEG processing algorithm */ +#define JPEGPROC_BASELINE 1 /* !baseline sequential */ +#define JPEGPROC_LOSSLESS 14 /* !Huffman coded lossless */ +#define TIFFTAG_JPEGIFOFFSET 513 /* !pointer to SOI marker */ +#define TIFFTAG_JPEGIFBYTECOUNT 514 /* !JFIF stream length */ +#define TIFFTAG_JPEGRESTARTINTERVAL 515 /* !restart interval length */ +#define TIFFTAG_JPEGLOSSLESSPREDICTORS 517 /* !lossless proc predictor */ +#define TIFFTAG_JPEGPOINTTRANSFORM 518 /* !lossless point transform */ +#define TIFFTAG_JPEGQTABLES 519 /* !Q matrice offsets */ +#define TIFFTAG_JPEGDCTABLES 520 /* !DCT table offsets */ +#define TIFFTAG_JPEGACTABLES 521 /* !AC coefficient offsets */ +#define TIFFTAG_YCBCRCOEFFICIENTS 529 /* !RGB -> YCbCr transform */ +#define TIFFTAG_YCBCRSUBSAMPLING 530 /* !YCbCr subsampling factors */ +#define TIFFTAG_YCBCRPOSITIONING 531 /* !subsample positioning */ +#define YCBCRPOSITION_CENTERED 1 /* !as in PostScript Level 2 */ +#define YCBCRPOSITION_COSITED 2 /* !as in CCIR 601-1 */ +#define TIFFTAG_REFERENCEBLACKWHITE 532 /* !colorimetry info */ +#define TIFFTAG_XMLPACKET 700 /* %XML packet + [Adobe XMP Specification, + January 2004 */ +#define TIFFTAG_OPIIMAGEID 32781 /* %OPI ImageID + [Adobe TIFF technote] */ +/* tags 32952-32956 are private tags registered to Island Graphics */ +#define TIFFTAG_REFPTS 32953 /* image reference points */ +#define TIFFTAG_REGIONTACKPOINT 32954 /* region-xform tack point */ +#define TIFFTAG_REGIONWARPCORNERS 32955 /* warp quadrilateral */ +#define TIFFTAG_REGIONAFFINE 32956 /* affine transformation mat */ +/* tags 32995-32999 are private tags registered to SGI */ +#define TIFFTAG_MATTEING 32995 /* $use ExtraSamples */ +#define TIFFTAG_DATATYPE 32996 /* $use SampleFormat */ +#define TIFFTAG_IMAGEDEPTH 32997 /* z depth of image */ +#define TIFFTAG_TILEDEPTH 32998 /* z depth/data tile */ +/* tags 33300-33309 are private tags registered to Pixar */ +/* + * TIFFTAG_PIXAR_IMAGEFULLWIDTH and TIFFTAG_PIXAR_IMAGEFULLLENGTH + * are set when an image has been cropped out of a larger image. + * They reflect the size of the original uncropped image. + * The TIFFTAG_XPOSITION and TIFFTAG_YPOSITION can be used + * to determine the position of the smaller image in the larger one. + */ +#define TIFFTAG_PIXAR_IMAGEFULLWIDTH 33300 /* full image size in x */ +#define TIFFTAG_PIXAR_IMAGEFULLLENGTH 33301 /* full image size in y */ + /* Tags 33302-33306 are used to identify special image modes and data + * used by Pixar's texture formats. + */ +#define TIFFTAG_PIXAR_TEXTUREFORMAT 33302 /* texture map format */ +#define TIFFTAG_PIXAR_WRAPMODES 33303 /* s & t wrap modes */ +#define TIFFTAG_PIXAR_FOVCOT 33304 /* cotan(fov) for env. maps */ +#define TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN 33305 +#define TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA 33306 +/* tag 33405 is a private tag registered to Eastman Kodak */ +#define TIFFTAG_WRITERSERIALNUMBER 33405 /* device serial number */ +/* tag 33432 is listed in the 6.0 spec w/ unknown ownership */ +#define TIFFTAG_COPYRIGHT 33432 /* copyright string */ +/* IPTC TAG from RichTIFF specifications */ +#define TIFFTAG_RICHTIFFIPTC 33723 +/* 34016-34029 are reserved for ANSI IT8 TIFF/IT <dkelly@apago.com) */ +#define TIFFTAG_IT8SITE 34016 /* site name */ +#define TIFFTAG_IT8COLORSEQUENCE 34017 /* color seq. [RGB,CMYK,etc] */ +#define TIFFTAG_IT8HEADER 34018 /* DDES Header */ +#define TIFFTAG_IT8RASTERPADDING 34019 /* raster scanline padding */ +#define TIFFTAG_IT8BITSPERRUNLENGTH 34020 /* # of bits in short run */ +#define TIFFTAG_IT8BITSPEREXTENDEDRUNLENGTH 34021/* # of bits in long run */ +#define TIFFTAG_IT8COLORTABLE 34022 /* LW colortable */ +#define TIFFTAG_IT8IMAGECOLORINDICATOR 34023 /* BP/BL image color switch */ +#define TIFFTAG_IT8BKGCOLORINDICATOR 34024 /* BP/BL bg color switch */ +#define TIFFTAG_IT8IMAGECOLORVALUE 34025 /* BP/BL image color value */ +#define TIFFTAG_IT8BKGCOLORVALUE 34026 /* BP/BL bg color value */ +#define TIFFTAG_IT8PIXELINTENSITYRANGE 34027 /* MP pixel intensity value */ +#define TIFFTAG_IT8TRANSPARENCYINDICATOR 34028 /* HC transparency switch */ +#define TIFFTAG_IT8COLORCHARACTERIZATION 34029 /* color character. table */ +#define TIFFTAG_IT8HCUSAGE 34030 /* HC usage indicator */ +#define TIFFTAG_IT8TRAPINDICATOR 34031 /* Trapping indicator + (untrapped=0, trapped=1) */ +#define TIFFTAG_IT8CMYKEQUIVALENT 34032 /* CMYK color equivalents */ +/* tags 34232-34236 are private tags registered to Texas Instruments */ +#define TIFFTAG_FRAMECOUNT 34232 /* Sequence Frame Count */ +/* tag 34377 is private tag registered to Adobe for PhotoShop */ +#define TIFFTAG_PHOTOSHOP 34377 +/* tags 34665, 34853 and 40965 are documented in EXIF specification */ +#define TIFFTAG_EXIFIFD 34665 /* Pointer to EXIF private directory */ +/* tag 34750 is a private tag registered to Adobe? */ +#define TIFFTAG_ICCPROFILE 34675 /* ICC profile data */ +/* tag 34750 is a private tag registered to Pixel Magic */ +#define TIFFTAG_JBIGOPTIONS 34750 /* JBIG options */ +#define TIFFTAG_GPSIFD 34853 /* Pointer to GPS private directory */ +/* tags 34908-34914 are private tags registered to SGI */ +#define TIFFTAG_FAXRECVPARAMS 34908 /* encoded Class 2 ses. parms */ +#define TIFFTAG_FAXSUBADDRESS 34909 /* received SubAddr string */ +#define TIFFTAG_FAXRECVTIME 34910 /* receive time (secs) */ +#define TIFFTAG_FAXDCS 34911 /* encoded fax ses. params, Table 2/T.30 */ +/* tags 37439-37443 are registered to SGI <gregl@sgi.com> */ +#define TIFFTAG_STONITS 37439 /* Sample value to Nits */ +/* tag 34929 is a private tag registered to FedEx */ +#define TIFFTAG_FEDEX_EDR 34929 /* unknown use */ +#define TIFFTAG_INTEROPERABILITYIFD 40965 /* Pointer to Interoperability private directory */ +/* Adobe Digital Negative (DNG) format tags */ +#define TIFFTAG_DNGVERSION 50706 /* &DNG version number */ +#define TIFFTAG_DNGBACKWARDVERSION 50707 /* &DNG compatibility version */ +#define TIFFTAG_UNIQUECAMERAMODEL 50708 /* &name for the camera model */ +#define TIFFTAG_LOCALIZEDCAMERAMODEL 50709 /* &localized camera model + name */ +#define TIFFTAG_CFAPLANECOLOR 50710 /* &CFAPattern->LinearRaw space + mapping */ +#define TIFFTAG_CFALAYOUT 50711 /* &spatial layout of the CFA */ +#define TIFFTAG_LINEARIZATIONTABLE 50712 /* &lookup table description */ +#define TIFFTAG_BLACKLEVELREPEATDIM 50713 /* &repeat pattern size for + the BlackLevel tag */ +#define TIFFTAG_BLACKLEVEL 50714 /* &zero light encoding level */ +#define TIFFTAG_BLACKLEVELDELTAH 50715 /* &zero light encoding level + differences (columns) */ +#define TIFFTAG_BLACKLEVELDELTAV 50716 /* &zero light encoding level + differences (rows) */ +#define TIFFTAG_WHITELEVEL 50717 /* &fully saturated encoding + level */ +#define TIFFTAG_DEFAULTSCALE 50718 /* &default scale factors */ +#define TIFFTAG_DEFAULTCROPORIGIN 50719 /* &origin of the final image + area */ +#define TIFFTAG_DEFAULTCROPSIZE 50720 /* &size of the final image + area */ +#define TIFFTAG_COLORMATRIX1 50721 /* &XYZ->reference color space + transformation matrix 1 */ +#define TIFFTAG_COLORMATRIX2 50722 /* &XYZ->reference color space + transformation matrix 2 */ +#define TIFFTAG_CAMERACALIBRATION1 50723 /* &calibration matrix 1 */ +#define TIFFTAG_CAMERACALIBRATION2 50724 /* &calibration matrix 2 */ +#define TIFFTAG_REDUCTIONMATRIX1 50725 /* &dimensionality reduction + matrix 1 */ +#define TIFFTAG_REDUCTIONMATRIX2 50726 /* &dimensionality reduction + matrix 2 */ +#define TIFFTAG_ANALOGBALANCE 50727 /* &gain applied the stored raw + values*/ +#define TIFFTAG_ASSHOTNEUTRAL 50728 /* &selected white balance in + linear reference space */ +#define TIFFTAG_ASSHOTWHITEXY 50729 /* &selected white balance in + x-y chromaticity + coordinates */ +#define TIFFTAG_BASELINEEXPOSURE 50730 /* &how much to move the zero + point */ +#define TIFFTAG_BASELINENOISE 50731 /* &relative noise level */ +#define TIFFTAG_BASELINESHARPNESS 50732 /* &relative amount of + sharpening */ +#define TIFFTAG_BAYERGREENSPLIT 50733 /* &how closely the values of + the green pixels in the + blue/green rows track the + values of the green pixels + in the red/green rows */ +#define TIFFTAG_LINEARRESPONSELIMIT 50734 /* &non-linear encoding range */ +#define TIFFTAG_CAMERASERIALNUMBER 50735 /* &camera's serial number */ +#define TIFFTAG_LENSINFO 50736 /* info about the lens */ +#define TIFFTAG_CHROMABLURRADIUS 50737 /* &chroma blur radius */ +#define TIFFTAG_ANTIALIASSTRENGTH 50738 /* &relative strength of the + camera's anti-alias filter */ +#define TIFFTAG_SHADOWSCALE 50739 /* &used by Adobe Camera Raw */ +#define TIFFTAG_DNGPRIVATEDATA 50740 /* &manufacturer's private data */ +#define TIFFTAG_MAKERNOTESAFETY 50741 /* &whether the EXIF MakerNote + tag is safe to preserve + along with the rest of the + EXIF data */ +#define TIFFTAG_CALIBRATIONILLUMINANT1 50778 /* &illuminant 1 */ +#define TIFFTAG_CALIBRATIONILLUMINANT2 50779 /* &illuminant 2 */ +#define TIFFTAG_BESTQUALITYSCALE 50780 /* &best quality multiplier */ +#define TIFFTAG_RAWDATAUNIQUEID 50781 /* &unique identifier for + the raw image data */ +#define TIFFTAG_ORIGINALRAWFILENAME 50827 /* &file name of the original + raw file */ +#define TIFFTAG_ORIGINALRAWFILEDATA 50828 /* &contents of the original + raw file */ +#define TIFFTAG_ACTIVEAREA 50829 /* &active (non-masked) pixels + of the sensor */ +#define TIFFTAG_MASKEDAREAS 50830 /* &list of coordinates + of fully masked pixels */ +#define TIFFTAG_ASSHOTICCPROFILE 50831 /* &these two tags used to */ +#define TIFFTAG_ASSHOTPREPROFILEMATRIX 50832 /* map cameras's color space + into ICC profile space */ +#define TIFFTAG_CURRENTICCPROFILE 50833 /* & */ +#define TIFFTAG_CURRENTPREPROFILEMATRIX 50834 /* & */ +/* tag 65535 is an undefined tag used by Eastman Kodak */ +#define TIFFTAG_DCSHUESHIFTVALUES 65535 /* hue shift correction data */ + +/* + * The following are ``pseudo tags'' that can be used to control + * codec-specific functionality. These tags are not written to file. + * Note that these values start at 0xffff+1 so that they'll never + * collide with Aldus-assigned tags. + * + * If you want your private pseudo tags ``registered'' (i.e. added to + * this file), please post a bug report via the tracking system at + * http://www.remotesensing.org/libtiff/bugs.html with the appropriate + * C definitions to add. + */ +#define TIFFTAG_FAXMODE 65536 /* Group 3/4 format control */ +#define FAXMODE_CLASSIC 0x0000 /* default, include RTC */ +#define FAXMODE_NORTC 0x0001 /* no RTC at end of data */ +#define FAXMODE_NOEOL 0x0002 /* no EOL code at end of row */ +#define FAXMODE_BYTEALIGN 0x0004 /* byte align row */ +#define FAXMODE_WORDALIGN 0x0008 /* word align row */ +#define FAXMODE_CLASSF FAXMODE_NORTC /* TIFF Class F */ +#define TIFFTAG_JPEGQUALITY 65537 /* Compression quality level */ +/* Note: quality level is on the IJG 0-100 scale. Default value is 75 */ +#define TIFFTAG_JPEGCOLORMODE 65538 /* Auto RGB<=>YCbCr convert? */ +#define JPEGCOLORMODE_RAW 0x0000 /* no conversion (default) */ +#define JPEGCOLORMODE_RGB 0x0001 /* do auto conversion */ +#define TIFFTAG_JPEGTABLESMODE 65539 /* What to put in JPEGTables */ +#define JPEGTABLESMODE_QUANT 0x0001 /* include quantization tbls */ +#define JPEGTABLESMODE_HUFF 0x0002 /* include Huffman tbls */ +/* Note: default is JPEGTABLESMODE_QUANT | JPEGTABLESMODE_HUFF */ +#define TIFFTAG_FAXFILLFUNC 65540 /* G3/G4 fill function */ +#define TIFFTAG_PIXARLOGDATAFMT 65549 /* PixarLogCodec I/O data sz */ +#define PIXARLOGDATAFMT_8BIT 0 /* regular u_char samples */ +#define PIXARLOGDATAFMT_8BITABGR 1 /* ABGR-order u_chars */ +#define PIXARLOGDATAFMT_11BITLOG 2 /* 11-bit log-encoded (raw) */ +#define PIXARLOGDATAFMT_12BITPICIO 3 /* as per PICIO (1.0==2048) */ +#define PIXARLOGDATAFMT_16BIT 4 /* signed short samples */ +#define PIXARLOGDATAFMT_FLOAT 5 /* IEEE float samples */ +/* 65550-65556 are allocated to Oceana Matrix <dev@oceana.com> */ +#define TIFFTAG_DCSIMAGERTYPE 65550 /* imager model & filter */ +#define DCSIMAGERMODEL_M3 0 /* M3 chip (1280 x 1024) */ +#define DCSIMAGERMODEL_M5 1 /* M5 chip (1536 x 1024) */ +#define DCSIMAGERMODEL_M6 2 /* M6 chip (3072 x 2048) */ +#define DCSIMAGERFILTER_IR 0 /* infrared filter */ +#define DCSIMAGERFILTER_MONO 1 /* monochrome filter */ +#define DCSIMAGERFILTER_CFA 2 /* color filter array */ +#define DCSIMAGERFILTER_OTHER 3 /* other filter */ +#define TIFFTAG_DCSINTERPMODE 65551 /* interpolation mode */ +#define DCSINTERPMODE_NORMAL 0x0 /* whole image, default */ +#define DCSINTERPMODE_PREVIEW 0x1 /* preview of image (384x256) */ +#define TIFFTAG_DCSBALANCEARRAY 65552 /* color balance values */ +#define TIFFTAG_DCSCORRECTMATRIX 65553 /* color correction values */ +#define TIFFTAG_DCSGAMMA 65554 /* gamma value */ +#define TIFFTAG_DCSTOESHOULDERPTS 65555 /* toe & shoulder points */ +#define TIFFTAG_DCSCALIBRATIONFD 65556 /* calibration file desc */ +/* Note: quality level is on the ZLIB 1-9 scale. Default value is -1 */ +#define TIFFTAG_ZIPQUALITY 65557 /* compression quality level */ +#define TIFFTAG_PIXARLOGQUALITY 65558 /* PixarLog uses same scale */ +/* 65559 is allocated to Oceana Matrix <dev@oceana.com> */ +#define TIFFTAG_DCSCLIPRECTANGLE 65559 /* area of image to acquire */ +#define TIFFTAG_SGILOGDATAFMT 65560 /* SGILog user data format */ +#define SGILOGDATAFMT_FLOAT 0 /* IEEE float samples */ +#define SGILOGDATAFMT_16BIT 1 /* 16-bit samples */ +#define SGILOGDATAFMT_RAW 2 /* uninterpreted data */ +#define SGILOGDATAFMT_8BIT 3 /* 8-bit RGB monitor values */ +#define TIFFTAG_SGILOGENCODE 65561 /* SGILog data encoding control*/ +#define SGILOGENCODE_NODITHER 0 /* do not dither encoded values*/ +#define SGILOGENCODE_RANDITHER 1 /* randomly dither encd values */ + +/* + * EXIF tags + */ +#define EXIFTAG_EXPOSURETIME 33434 /* Exposure time */ +#define EXIFTAG_FNUMBER 33437 /* F number */ +#define EXIFTAG_EXPOSUREPROGRAM 34850 /* Exposure program */ +#define EXIFTAG_SPECTRALSENSITIVITY 34852 /* Spectral sensitivity */ +#define EXIFTAG_ISOSPEEDRATINGS 34855 /* ISO speed rating */ +#define EXIFTAG_OECF 34856 /* Optoelectric conversion + factor */ +#define EXIFTAG_EXIFVERSION 36864 /* Exif version */ +#define EXIFTAG_DATETIMEORIGINAL 36867 /* Date and time of original + data generation */ +#define EXIFTAG_DATETIMEDIGITIZED 36868 /* Date and time of digital + data generation */ +#define EXIFTAG_COMPONENTSCONFIGURATION 37121 /* Meaning of each component */ +#define EXIFTAG_COMPRESSEDBITSPERPIXEL 37122 /* Image compression mode */ +#define EXIFTAG_SHUTTERSPEEDVALUE 37377 /* Shutter speed */ +#define EXIFTAG_APERTUREVALUE 37378 /* Aperture */ +#define EXIFTAG_BRIGHTNESSVALUE 37379 /* Brightness */ +#define EXIFTAG_EXPOSUREBIASVALUE 37380 /* Exposure bias */ +#define EXIFTAG_MAXAPERTUREVALUE 37381 /* Maximum lens aperture */ +#define EXIFTAG_SUBJECTDISTANCE 37382 /* Subject distance */ +#define EXIFTAG_METERINGMODE 37383 /* Metering mode */ +#define EXIFTAG_LIGHTSOURCE 37384 /* Light source */ +#define EXIFTAG_FLASH 37385 /* Flash */ +#define EXIFTAG_FOCALLENGTH 37386 /* Lens focal length */ +#define EXIFTAG_SUBJECTAREA 37396 /* Subject area */ +#define EXIFTAG_MAKERNOTE 37500 /* Manufacturer notes */ +#define EXIFTAG_USERCOMMENT 37510 /* User comments */ +#define EXIFTAG_SUBSECTIME 37520 /* DateTime subseconds */ +#define EXIFTAG_SUBSECTIMEORIGINAL 37521 /* DateTimeOriginal subseconds */ +#define EXIFTAG_SUBSECTIMEDIGITIZED 37522 /* DateTimeDigitized subseconds */ +#define EXIFTAG_FLASHPIXVERSION 40960 /* Supported Flashpix version */ +#define EXIFTAG_COLORSPACE 40961 /* Color space information */ +#define EXIFTAG_PIXELXDIMENSION 40962 /* Valid image width */ +#define EXIFTAG_PIXELYDIMENSION 40963 /* Valid image height */ +#define EXIFTAG_RELATEDSOUNDFILE 40964 /* Related audio file */ +#define EXIFTAG_FLASHENERGY 41483 /* Flash energy */ +#define EXIFTAG_SPATIALFREQUENCYRESPONSE 41484 /* Spatial frequency response */ +#define EXIFTAG_FOCALPLANEXRESOLUTION 41486 /* Focal plane X resolution */ +#define EXIFTAG_FOCALPLANEYRESOLUTION 41487 /* Focal plane Y resolution */ +#define EXIFTAG_FOCALPLANERESOLUTIONUNIT 41488 /* Focal plane resolution unit */ +#define EXIFTAG_SUBJECTLOCATION 41492 /* Subject location */ +#define EXIFTAG_EXPOSUREINDEX 41493 /* Exposure index */ +#define EXIFTAG_SENSINGMETHOD 41495 /* Sensing method */ +#define EXIFTAG_FILESOURCE 41728 /* File source */ +#define EXIFTAG_SCENETYPE 41729 /* Scene type */ +#define EXIFTAG_CFAPATTERN 41730 /* CFA pattern */ +#define EXIFTAG_CUSTOMRENDERED 41985 /* Custom image processing */ +#define EXIFTAG_EXPOSUREMODE 41986 /* Exposure mode */ +#define EXIFTAG_WHITEBALANCE 41987 /* White balance */ +#define EXIFTAG_DIGITALZOOMRATIO 41988 /* Digital zoom ratio */ +#define EXIFTAG_FOCALLENGTHIN35MMFILM 41989 /* Focal length in 35 mm film */ +#define EXIFTAG_SCENECAPTURETYPE 41990 /* Scene capture type */ +#define EXIFTAG_GAINCONTROL 41991 /* Gain control */ +#define EXIFTAG_CONTRAST 41992 /* Contrast */ +#define EXIFTAG_SATURATION 41993 /* Saturation */ +#define EXIFTAG_SHARPNESS 41994 /* Sharpness */ +#define EXIFTAG_DEVICESETTINGDESCRIPTION 41995 /* Device settings description */ +#define EXIFTAG_SUBJECTDISTANCERANGE 41996 /* Subject distance range */ +#define EXIFTAG_GAINCONTROL 41991 /* Gain control */ +#define EXIFTAG_GAINCONTROL 41991 /* Gain control */ +#define EXIFTAG_IMAGEUNIQUEID 42016 /* Unique image ID */ + +#endif /* _TIFF_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiffconf.h.in b/tiff/libtiff/tiffconf.h.in new file mode 100644 index 0000000..1a52b37 --- /dev/null +++ b/tiff/libtiff/tiffconf.h.in @@ -0,0 +1,103 @@ +/* + Configuration defines for installed libtiff. + This file maintained for backward compatibility. Do not use definitions + from this file in your programs. +*/ + +#ifndef _TIFFCONF_ +#define _TIFFCONF_ + +/* Define to 1 if the system has the type `int16'. */ +#undef HAVE_INT16 + +/* Define to 1 if the system has the type `int32'. */ +#undef HAVE_INT32 + +/* Define to 1 if the system has the type `int8'. */ +#undef HAVE_INT8 + +/* The size of a `int', as computed by sizeof. */ +#undef SIZEOF_INT + +/* The size of a `long', as computed by sizeof. */ +#undef SIZEOF_LONG + +/* Compatibility stuff. */ + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#undef HAVE_IEEEFP + +/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ +#undef HOST_FILLORDER + +/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian + (Intel) */ +#undef HOST_BIGENDIAN + +/* Support CCITT Group 3 & 4 algorithms */ +#undef CCITT_SUPPORT + +/* Support JPEG compression (requires IJG JPEG library) */ +#undef JPEG_SUPPORT + +/* Support JBIG compression (requires JBIG-KIT library) */ +#undef JBIG_SUPPORT + +/* Support LogLuv high dynamic range encoding */ +#undef LOGLUV_SUPPORT + +/* Support LZW algorithm */ +#undef LZW_SUPPORT + +/* Support NeXT 2-bit RLE algorithm */ +#undef NEXT_SUPPORT + +/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation + fails with unpatched IJG JPEG library) */ +#undef OJPEG_SUPPORT + +/* Support Macintosh PackBits algorithm */ +#undef PACKBITS_SUPPORT + +/* Support Pixar log-format algorithm (requires Zlib) */ +#undef PIXARLOG_SUPPORT + +/* Support ThunderScan 4-bit RLE algorithm */ +#undef THUNDER_SUPPORT + +/* Support Deflate compression */ +#undef ZIP_SUPPORT + +/* Support strip chopping (whether or not to convert single-strip uncompressed + images to mutiple strips of ~8Kb to reduce memory usage) */ +#undef STRIPCHOP_DEFAULT + +/* Enable SubIFD tag (330) support */ +#undef SUBIFD_SUPPORT + +/* Treat extra sample as alpha (default enabled). The RGBA interface will + treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many + packages produce RGBA files but don't mark the alpha properly. */ +#undef DEFAULT_EXTRASAMPLE_AS_ALPHA + +/* Pick up YCbCr subsampling info from the JPEG data stream to support files + lacking the tag (default enabled). */ +#undef CHECK_JPEG_YCBCR_SUBSAMPLING + +/* Support MS MDI magic number files as TIFF */ +#undef MDI_SUPPORT + +/* + * Feature support definitions. + * XXX: These macros are obsoleted. Don't use them in your apps! + * Macros stays here for backward compatibility and should be always defined. + */ +#define COLORIMETRY_SUPPORT +#define YCBCR_SUPPORT +#define CMYK_SUPPORT +#define ICC_SUPPORT +#define PHOTOSHOP_SUPPORT +#define IPTC_SUPPORT + +#endif /* _TIFFCONF_ */ diff --git a/tiff/libtiff/tiffconf.vc.h b/tiff/libtiff/tiffconf.vc.h new file mode 100644 index 0000000..47a9488 --- /dev/null +++ b/tiff/libtiff/tiffconf.vc.h @@ -0,0 +1,116 @@ +/* + Configuration defines for installed libtiff. + This file maintained for backward compatibility. Do not use definitions + from this file in your programs. +*/ + +#ifndef _TIFFCONF_ +#define _TIFFCONF_ + +/* Define to 1 if the system has the type `int16'. */ +/* #undef HAVE_INT16 */ + +/* Define to 1 if the system has the type `int32'. */ +/* #undef HAVE_INT32 */ + +/* Define to 1 if the system has the type `int8'. */ +/* #undef HAVE_INT8 */ + +/* The size of a `int', as computed by sizeof. */ +#define SIZEOF_INT 4 + +/* The size of a `long', as computed by sizeof. */ +#define SIZEOF_LONG 4 + +/* Signed 64-bit type formatter */ +#define TIFF_INT64_FORMAT "%I64d" + +/* Signed 64-bit type */ +#define TIFF_INT64_T signed __int64 + +/* Unsigned 64-bit type formatter */ +#define TIFF_UINT64_FORMAT "%I64u" + +/* Unsigned 64-bit type */ +#define TIFF_UINT64_T unsigned __int64 + +/* Compatibility stuff. */ + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#define HAVE_IEEEFP 1 + +/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ +#define HOST_FILLORDER FILLORDER_LSB2MSB + +/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian + (Intel) */ +#define HOST_BIGENDIAN 0 + +/* Support CCITT Group 3 & 4 algorithms */ +#define CCITT_SUPPORT 1 + +/* Support JPEG compression (requires IJG JPEG library) */ +#define JPEG_SUPPORT + +/* Support LogLuv high dynamic range encoding */ +#define LOGLUV_SUPPORT 1 + +/* Support LZW algorithm */ +#define LZW_SUPPORT 1 + +/* Support NeXT 2-bit RLE algorithm */ +#define NEXT_SUPPORT 1 + +/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation + fails with unpatched IJG JPEG library) */ +/* #undef OJPEG_SUPPORT */ + +/* Support Macintosh PackBits algorithm */ +#define PACKBITS_SUPPORT 1 + +/* Support Pixar log-format algorithm (requires Zlib) */ +/* #undef PIXARLOG_SUPPORT */ + +/* Support ThunderScan 4-bit RLE algorithm */ +#define THUNDER_SUPPORT 1 + +/* Support Deflate compression */ +/* #undef ZIP_SUPPORT */ + +/* Support strip chopping (whether or not to convert single-strip uncompressed + images to mutiple strips of ~8Kb to reduce memory usage) */ +#define STRIPCHOP_DEFAULT TIFF_STRIPCHOP + +/* Enable SubIFD tag (330) support */ +#define SUBIFD_SUPPORT 1 + +/* Treat extra sample as alpha (default enabled). The RGBA interface will + treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many + packages produce RGBA files but don't mark the alpha properly. */ +#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1 + +/* Pick up YCbCr subsampling info from the JPEG data stream to support files + lacking the tag (default enabled). */ +#define CHECK_JPEG_YCBCR_SUBSAMPLING 1 + +/* + * Feature support definitions. + * XXX: These macros are obsoleted. Don't use them in your apps! + * Macros stays here for backward compatibility and should be always defined. + */ +#define COLORIMETRY_SUPPORT +#define YCBCR_SUPPORT +#define CMYK_SUPPORT +#define ICC_SUPPORT +#define PHOTOSHOP_SUPPORT +#define IPTC_SUPPORT + +#endif /* _TIFFCONF_ */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiffconf.wince.h b/tiff/libtiff/tiffconf.wince.h new file mode 100644 index 0000000..68ab31e --- /dev/null +++ b/tiff/libtiff/tiffconf.wince.h @@ -0,0 +1,136 @@ +/* $Id: tiffconf.wince.h,v 1.1.2.2 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Windows CE platform tiffconf.wince.h + * Created by Mateusz Loskot (mateusz@loskot.net) + * + * NOTE: Requires WCELIBCEX library with wceex_* functions, + * It's an extension to C library on Windows CE platform. + * For example, HAVE_STDIO_H definition indicates there are + * following files available: + * stdio.h - from Windows CE / Windows Mobile SDK + * wce_stdio.h - from WCELIBCEX library + */ + + +/* + Configuration defines for installed libtiff. + This file maintained for backward compatibility. Do not use definitions + from this file in your programs. +*/ + +#ifndef _WIN32_WCE +# error This version of tif_config.h header is dedicated for Windows CE platform! +#endif + + +#ifndef _TIFFCONF_ +#define _TIFFCONF_ + +/* Define to 1 if the system has the type `int16'. */ +/* #undef HAVE_INT16 */ + +/* Define to 1 if the system has the type `int32'. */ +/* #undef HAVE_INT32 */ + +/* Define to 1 if the system has the type `int8'. */ +/* #undef HAVE_INT8 */ + +/* The size of a `int', as computed by sizeof. */ +#define SIZEOF_INT 4 + +/* The size of a `long', as computed by sizeof. */ +#define SIZEOF_LONG 4 + +/* Signed 64-bit type formatter */ +#define TIFF_INT64_FORMAT "%I64d" + +/* Signed 64-bit type */ +#define TIFF_INT64_T signed __int64 + +/* Unsigned 64-bit type formatter */ +#define TIFF_UINT64_FORMAT "%I64u" + +/* Unsigned 64-bit type */ +#define TIFF_UINT64_T unsigned __int64 + +/* Compatibility stuff. */ + +/* Define as 0 or 1 according to the floating point format suported by the + machine */ +#define HAVE_IEEEFP 1 + +/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ +#define HOST_FILLORDER FILLORDER_LSB2MSB + +/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian + (Intel) */ +#define HOST_BIGENDIAN 0 + +/* Support CCITT Group 3 & 4 algorithms */ +#define CCITT_SUPPORT 1 + +/* Support JPEG compression (requires IJG JPEG library) */ +/* #undef JPEG_SUPPORT */ + +/* Support LogLuv high dynamic range encoding */ +#define LOGLUV_SUPPORT 1 + +/* Support LZW algorithm */ +#define LZW_SUPPORT 1 + +/* Support NeXT 2-bit RLE algorithm */ +#define NEXT_SUPPORT 1 + +/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation + fails with unpatched IJG JPEG library) */ +/* #undef OJPEG_SUPPORT */ + +/* Support Macintosh PackBits algorithm */ +#define PACKBITS_SUPPORT 1 + +/* Support Pixar log-format algorithm (requires Zlib) */ +/* #undef PIXARLOG_SUPPORT */ + +/* Support ThunderScan 4-bit RLE algorithm */ +#define THUNDER_SUPPORT 1 + +/* Support Deflate compression */ +/* #undef ZIP_SUPPORT */ + +/* Support strip chopping (whether or not to convert single-strip uncompressed + images to mutiple strips of ~8Kb to reduce memory usage) */ +#define STRIPCHOP_DEFAULT TIFF_STRIPCHOP + +/* Enable SubIFD tag (330) support */ +#define SUBIFD_SUPPORT 1 + +/* Treat extra sample as alpha (default enabled). The RGBA interface will + treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many + packages produce RGBA files but don't mark the alpha properly. */ +#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1 + +/* Pick up YCbCr subsampling info from the JPEG data stream to support files + lacking the tag (default enabled). */ +#define CHECK_JPEG_YCBCR_SUBSAMPLING 1 + +/* + * Feature support definitions. + * XXX: These macros are obsoleted. Don't use them in your apps! + * Macros stays here for backward compatibility and should be always defined. + */ +#define COLORIMETRY_SUPPORT +#define YCBCR_SUPPORT +#define CMYK_SUPPORT +#define ICC_SUPPORT +#define PHOTOSHOP_SUPPORT +#define IPTC_SUPPORT + +#endif /* _TIFFCONF_ */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiffio.h b/tiff/libtiff/tiffio.h new file mode 100644 index 0000000..06ec25c --- /dev/null +++ b/tiff/libtiff/tiffio.h @@ -0,0 +1,526 @@ +/* $Id: tiffio.h,v 1.56.2.4 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _TIFFIO_ +#define _TIFFIO_ + +/* + * TIFF I/O Library Definitions. + */ +#include "tiff.h" +#include "tiffvers.h" + +/* + * TIFF is defined as an incomplete type to hide the + * library's internal data structures from clients. + */ +typedef struct tiff TIFF; + +/* + * The following typedefs define the intrinsic size of + * data types used in the *exported* interfaces. These + * definitions depend on the proper definition of types + * in tiff.h. Note also that the varargs interface used + * to pass tag types and values uses the types defined in + * tiff.h directly. + * + * NB: ttag_t is unsigned int and not unsigned short because + * ANSI C requires that the type before the ellipsis be a + * promoted type (i.e. one of int, unsigned int, pointer, + * or double) and because we defined pseudo-tags that are + * outside the range of legal Aldus-assigned tags. + * NB: tsize_t is int32 and not uint32 because some functions + * return -1. + * NB: toff_t is not off_t for many reasons; TIFFs max out at + * 32-bit file offsets being the most important, and to ensure + * that it is unsigned, rather than signed. + */ +typedef uint32 ttag_t; /* directory tag */ +typedef uint16 tdir_t; /* directory index */ +typedef uint16 tsample_t; /* sample number */ +typedef uint32 tstrile_t; /* strip or tile number */ +typedef tstrile_t tstrip_t; /* strip number */ +typedef tstrile_t ttile_t; /* tile number */ +typedef int32 tsize_t; /* i/o size in bytes */ +typedef void* tdata_t; /* image data ref */ +typedef uint32 toff_t; /* file offset */ + +#if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32)) +#define __WIN32__ +#endif + +/* + * On windows you should define USE_WIN32_FILEIO if you are using tif_win32.c + * or AVOID_WIN32_FILEIO if you are using something else (like tif_unix.c). + * + * By default tif_unix.c is assumed. + */ + +#if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows) +# if !defined(__CYGWIN) && !defined(AVOID_WIN32_FILEIO) && !defined(USE_WIN32_FILEIO) +# define AVOID_WIN32_FILEIO +# endif +#endif + +#if defined(USE_WIN32_FILEIO) +# define VC_EXTRALEAN +# include <windows.h> +# ifdef __WIN32__ +DECLARE_HANDLE(thandle_t); /* Win32 file handle */ +# else +typedef HFILE thandle_t; /* client data handle */ +# endif /* __WIN32__ */ +#else +typedef void* thandle_t; /* client data handle */ +#endif /* USE_WIN32_FILEIO */ + +/* + * Flags to pass to TIFFPrintDirectory to control + * printing of data structures that are potentially + * very large. Bit-or these flags to enable printing + * multiple items. + */ +#define TIFFPRINT_NONE 0x0 /* no extra info */ +#define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ +#define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ +#define TIFFPRINT_COLORMAP 0x4 /* colormap */ +#define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ +#define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ +#define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ + +/* + * Colour conversion stuff + */ + +/* reference white */ +#define D65_X0 (95.0470F) +#define D65_Y0 (100.0F) +#define D65_Z0 (108.8827F) + +#define D50_X0 (96.4250F) +#define D50_Y0 (100.0F) +#define D50_Z0 (82.4680F) + +/* Structure for holding information about a display device. */ + +typedef unsigned char TIFFRGBValue; /* 8-bit samples */ + +typedef struct { + float d_mat[3][3]; /* XYZ -> luminance matrix */ + float d_YCR; /* Light o/p for reference white */ + float d_YCG; + float d_YCB; + uint32 d_Vrwr; /* Pixel values for ref. white */ + uint32 d_Vrwg; + uint32 d_Vrwb; + float d_Y0R; /* Residual light for black pixel */ + float d_Y0G; + float d_Y0B; + float d_gammaR; /* Gamma values for the three guns */ + float d_gammaG; + float d_gammaB; +} TIFFDisplay; + +typedef struct { /* YCbCr->RGB support */ + TIFFRGBValue* clamptab; /* range clamping table */ + int* Cr_r_tab; + int* Cb_b_tab; + int32* Cr_g_tab; + int32* Cb_g_tab; + int32* Y_tab; +} TIFFYCbCrToRGB; + +typedef struct { /* CIE Lab 1976->RGB support */ + int range; /* Size of conversion table */ +#define CIELABTORGB_TABLE_RANGE 1500 + float rstep, gstep, bstep; + float X0, Y0, Z0; /* Reference white point */ + TIFFDisplay display; + float Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */ + float Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */ + float Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */ +} TIFFCIELabToRGB; + +/* + * RGBA-style image support. + */ +typedef struct _TIFFRGBAImage TIFFRGBAImage; +/* + * The image reading and conversion routines invoke + * ``put routines'' to copy/image/whatever tiles of + * raw image data. A default set of routines are + * provided to convert/copy raw image data to 8-bit + * packed ABGR format rasters. Applications can supply + * alternate routines that unpack the data into a + * different format or, for example, unpack the data + * and draw the unpacked raster on the display. + */ +typedef void (*tileContigRoutine) + (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, + unsigned char*); +typedef void (*tileSeparateRoutine) + (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, + unsigned char*, unsigned char*, unsigned char*, unsigned char*); +/* + * RGBA-reader state. + */ +struct _TIFFRGBAImage { + TIFF* tif; /* image handle */ + int stoponerr; /* stop on read error */ + int isContig; /* data is packed/separate */ + int alpha; /* type of alpha data present */ + uint32 width; /* image width */ + uint32 height; /* image height */ + uint16 bitspersample; /* image bits/sample */ + uint16 samplesperpixel; /* image samples/pixel */ + uint16 orientation; /* image orientation */ + uint16 req_orientation; /* requested orientation */ + uint16 photometric; /* image photometric interp */ + uint16* redcmap; /* colormap pallete */ + uint16* greencmap; + uint16* bluecmap; + /* get image data routine */ + int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); + /* put decoded strip/tile */ + union { + void (*any)(TIFFRGBAImage*); + tileContigRoutine contig; + tileSeparateRoutine separate; + } put; + TIFFRGBValue* Map; /* sample mapping array */ + uint32** BWmap; /* black&white map */ + uint32** PALmap; /* palette image map */ + TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ + TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ + + int row_offset; + int col_offset; +}; + +/* + * Macros for extracting components from the + * packed ABGR form returned by TIFFReadRGBAImage. + */ +#define TIFFGetR(abgr) ((abgr) & 0xff) +#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff) +#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff) +#define TIFFGetA(abgr) (((abgr) >> 24) & 0xff) + +/* + * A CODEC is a software package that implements decoding, + * encoding, or decoding+encoding of a compression algorithm. + * The library provides a collection of builtin codecs. + * More codecs may be registered through calls to the library + * and/or the builtin implementations may be overridden. + */ +typedef int (*TIFFInitMethod)(TIFF*, int); +typedef struct { + char* name; + uint16 scheme; + TIFFInitMethod init; +} TIFFCodec; + +#include <stdio.h> +#include <stdarg.h> + +/* share internal LogLuv conversion routines? */ +#ifndef LOGLUV_PUBLIC +#define LOGLUV_PUBLIC 1 +#endif + +#if !defined(__GNUC__) && !defined(__attribute__) +# define __attribute__(x) /*nothing*/ +#endif + +#if defined(c_plusplus) || defined(__cplusplus) +extern "C" { +#endif +typedef void (*TIFFErrorHandler)(const char*, const char*, va_list); +typedef void (*TIFFErrorHandlerExt)(thandle_t, const char*, const char*, va_list); +typedef tsize_t (*TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t); +typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int); +typedef int (*TIFFCloseProc)(thandle_t); +typedef toff_t (*TIFFSizeProc)(thandle_t); +typedef int (*TIFFMapFileProc)(thandle_t, tdata_t*, toff_t*); +typedef void (*TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t); +typedef void (*TIFFExtendProc)(TIFF*); + +extern const char* TIFFGetVersion(void); + +extern const TIFFCodec* TIFFFindCODEC(uint16); +extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod); +extern void TIFFUnRegisterCODEC(TIFFCodec*); +extern int TIFFIsCODECConfigured(uint16); +extern TIFFCodec* TIFFGetConfiguredCODECs(void); + +/* + * Auxiliary functions. + */ + +extern tdata_t _TIFFmalloc(tsize_t); +extern tdata_t _TIFFrealloc(tdata_t, tsize_t); +extern void _TIFFmemset(tdata_t, int, tsize_t); +extern void _TIFFmemcpy(tdata_t, const tdata_t, tsize_t); +extern int _TIFFmemcmp(const tdata_t, const tdata_t, tsize_t); +extern void _TIFFfree(tdata_t); + +/* +** Stuff, related to tag handling and creating custom tags. +*/ +extern int TIFFGetTagListCount( TIFF * ); +extern ttag_t TIFFGetTagListEntry( TIFF *, int tag_index ); + +#define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */ +#define TIFF_VARIABLE -1 /* marker for variable length tags */ +#define TIFF_SPP -2 /* marker for SamplesPerPixel tags */ +#define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */ + +#define FIELD_CUSTOM 65 + +typedef struct { + ttag_t field_tag; /* field's tag */ + short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ + short field_writecount; /* write count/TIFF_VARIABLE */ + TIFFDataType field_type; /* type of associated data */ + unsigned short field_bit; /* bit in fieldsset bit vector */ + unsigned char field_oktochange; /* if true, can change while writing */ + unsigned char field_passcount; /* if true, pass dir count on set */ + char *field_name; /* ASCII name */ +} TIFFFieldInfo; + +typedef struct _TIFFTagValue { + const TIFFFieldInfo *info; + int count; + void *value; +} TIFFTagValue; + +extern void TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int); +extern const TIFFFieldInfo* TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType); +extern const TIFFFieldInfo* TIFFFindFieldInfoByName(TIFF* , const char *, + TIFFDataType); +extern const TIFFFieldInfo* TIFFFieldWithTag(TIFF*, ttag_t); +extern const TIFFFieldInfo* TIFFFieldWithName(TIFF*, const char *); + +typedef int (*TIFFVSetMethod)(TIFF*, ttag_t, va_list); +typedef int (*TIFFVGetMethod)(TIFF*, ttag_t, va_list); +typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long); + +typedef struct { + TIFFVSetMethod vsetfield; /* tag set routine */ + TIFFVGetMethod vgetfield; /* tag get routine */ + TIFFPrintMethod printdir; /* directory print routine */ +} TIFFTagMethods; + +extern TIFFTagMethods *TIFFAccessTagMethods( TIFF * ); +extern void *TIFFGetClientInfo( TIFF *, const char * ); +extern void TIFFSetClientInfo( TIFF *, void *, const char * ); + +extern void TIFFCleanup(TIFF*); +extern void TIFFClose(TIFF*); +extern int TIFFFlush(TIFF*); +extern int TIFFFlushData(TIFF*); +extern int TIFFGetField(TIFF*, ttag_t, ...); +extern int TIFFVGetField(TIFF*, ttag_t, va_list); +extern int TIFFGetFieldDefaulted(TIFF*, ttag_t, ...); +extern int TIFFVGetFieldDefaulted(TIFF*, ttag_t, va_list); +extern int TIFFReadDirectory(TIFF*); +extern int TIFFReadCustomDirectory(TIFF*, toff_t, const TIFFFieldInfo[], + size_t); +extern int TIFFReadEXIFDirectory(TIFF*, toff_t); +extern tsize_t TIFFScanlineSize(TIFF*); +extern tsize_t TIFFOldScanlineSize(TIFF*); +extern tsize_t TIFFNewScanlineSize(TIFF*); +extern tsize_t TIFFRasterScanlineSize(TIFF*); +extern tsize_t TIFFStripSize(TIFF*); +extern tsize_t TIFFRawStripSize(TIFF*, tstrip_t); +extern tsize_t TIFFVStripSize(TIFF*, uint32); +extern tsize_t TIFFTileRowSize(TIFF*); +extern tsize_t TIFFTileSize(TIFF*); +extern tsize_t TIFFVTileSize(TIFF*, uint32); +extern uint32 TIFFDefaultStripSize(TIFF*, uint32); +extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*); +extern int TIFFFileno(TIFF*); +extern int TIFFSetFileno(TIFF*, int); +extern thandle_t TIFFClientdata(TIFF*); +extern thandle_t TIFFSetClientdata(TIFF*, thandle_t); +extern int TIFFGetMode(TIFF*); +extern int TIFFSetMode(TIFF*, int); +extern int TIFFIsTiled(TIFF*); +extern int TIFFIsByteSwapped(TIFF*); +extern int TIFFIsUpSampled(TIFF*); +extern int TIFFIsMSB2LSB(TIFF*); +extern int TIFFIsBigEndian(TIFF*); +extern TIFFReadWriteProc TIFFGetReadProc(TIFF*); +extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*); +extern TIFFSeekProc TIFFGetSeekProc(TIFF*); +extern TIFFCloseProc TIFFGetCloseProc(TIFF*); +extern TIFFSizeProc TIFFGetSizeProc(TIFF*); +extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*); +extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*); +extern uint32 TIFFCurrentRow(TIFF*); +extern tdir_t TIFFCurrentDirectory(TIFF*); +extern tdir_t TIFFNumberOfDirectories(TIFF*); +extern uint32 TIFFCurrentDirOffset(TIFF*); +extern tstrip_t TIFFCurrentStrip(TIFF*); +extern ttile_t TIFFCurrentTile(TIFF*); +extern int TIFFReadBufferSetup(TIFF*, tdata_t, tsize_t); +extern int TIFFWriteBufferSetup(TIFF*, tdata_t, tsize_t); +extern int TIFFSetupStrips(TIFF *); +extern int TIFFWriteCheck(TIFF*, int, const char *); +extern void TIFFFreeDirectory(TIFF*); +extern int TIFFCreateDirectory(TIFF*); +extern int TIFFLastDirectory(TIFF*); +extern int TIFFSetDirectory(TIFF*, tdir_t); +extern int TIFFSetSubDirectory(TIFF*, uint32); +extern int TIFFUnlinkDirectory(TIFF*, tdir_t); +extern int TIFFSetField(TIFF*, ttag_t, ...); +extern int TIFFVSetField(TIFF*, ttag_t, va_list); +extern int TIFFWriteDirectory(TIFF *); +extern int TIFFCheckpointDirectory(TIFF *); +extern int TIFFRewriteDirectory(TIFF *); +extern int TIFFReassignTagToIgnore(enum TIFFIgnoreSense, int); + +#if defined(c_plusplus) || defined(__cplusplus) +extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0); +extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t = 0); +extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t = 0); +extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0); +extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, + int = ORIENTATION_BOTLEFT, int = 0); +#else +extern void TIFFPrintDirectory(TIFF*, FILE*, long); +extern int TIFFReadScanline(TIFF*, tdata_t, uint32, tsample_t); +extern int TIFFWriteScanline(TIFF*, tdata_t, uint32, tsample_t); +extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int); +extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int); +#endif + +extern int TIFFReadRGBAStrip(TIFF*, tstrip_t, uint32 * ); +extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * ); +extern int TIFFRGBAImageOK(TIFF*, char [1024]); +extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]); +extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32); +extern void TIFFRGBAImageEnd(TIFFRGBAImage*); +extern TIFF* TIFFOpen(const char*, const char*); +# ifdef __WIN32__ +extern TIFF* TIFFOpenW(const wchar_t*, const char*); +# endif /* __WIN32__ */ +extern TIFF* TIFFFdOpen(int, const char*, const char*); +extern TIFF* TIFFClientOpen(const char*, const char*, + thandle_t, + TIFFReadWriteProc, TIFFReadWriteProc, + TIFFSeekProc, TIFFCloseProc, + TIFFSizeProc, + TIFFMapFileProc, TIFFUnmapFileProc); +extern const char* TIFFFileName(TIFF*); +extern const char* TIFFSetFileName(TIFF*, const char *); +extern void TIFFError(const char*, const char*, ...) __attribute__((format (printf,2,3))); +extern void TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((format (printf,3,4))); +extern void TIFFWarning(const char*, const char*, ...) __attribute__((format (printf,2,3))); +extern void TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((format (printf,3,4))); +extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler); +extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt); +extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler); +extern TIFFErrorHandlerExt TIFFSetWarningHandlerExt(TIFFErrorHandlerExt); +extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc); +extern ttile_t TIFFComputeTile(TIFF*, uint32, uint32, uint32, tsample_t); +extern int TIFFCheckTile(TIFF*, uint32, uint32, uint32, tsample_t); +extern ttile_t TIFFNumberOfTiles(TIFF*); +extern tsize_t TIFFReadTile(TIFF*, + tdata_t, uint32, uint32, uint32, tsample_t); +extern tsize_t TIFFWriteTile(TIFF*, + tdata_t, uint32, uint32, uint32, tsample_t); +extern tstrip_t TIFFComputeStrip(TIFF*, uint32, tsample_t); +extern tstrip_t TIFFNumberOfStrips(TIFF*); +extern tsize_t TIFFReadEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); +extern tsize_t TIFFReadRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); +extern tsize_t TIFFReadEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); +extern tsize_t TIFFReadRawTile(TIFF*, ttile_t, tdata_t, tsize_t); +extern tsize_t TIFFWriteEncodedStrip(TIFF*, tstrip_t, tdata_t, tsize_t); +extern tsize_t TIFFWriteRawStrip(TIFF*, tstrip_t, tdata_t, tsize_t); +extern tsize_t TIFFWriteEncodedTile(TIFF*, ttile_t, tdata_t, tsize_t); +extern tsize_t TIFFWriteRawTile(TIFF*, ttile_t, tdata_t, tsize_t); +extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */ +extern void TIFFSetWriteOffset(TIFF*, toff_t); +extern void TIFFSwabShort(uint16*); +extern void TIFFSwabLong(uint32*); +extern void TIFFSwabDouble(double*); +extern void TIFFSwabArrayOfShort(uint16*, unsigned long); +extern void TIFFSwabArrayOfTriples(uint8*, unsigned long); +extern void TIFFSwabArrayOfLong(uint32*, unsigned long); +extern void TIFFSwabArrayOfDouble(double*, unsigned long); +extern void TIFFReverseBits(unsigned char *, unsigned long); +extern const unsigned char* TIFFGetBitRevTable(int); + +#ifdef LOGLUV_PUBLIC +#define U_NEU 0.210526316 +#define V_NEU 0.473684211 +#define UVSCALE 410. +extern double LogL16toY(int); +extern double LogL10toY(int); +extern void XYZtoRGB24(float*, uint8*); +extern int uv_decode(double*, double*, int); +extern void LogLuv24toXYZ(uint32, float*); +extern void LogLuv32toXYZ(uint32, float*); +#if defined(c_plusplus) || defined(__cplusplus) +extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER); +extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER); +extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER); +extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER); +extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER); +#else +extern int LogL16fromY(double, int); +extern int LogL10fromY(double, int); +extern int uv_encode(double, double, int); +extern uint32 LogLuv24fromXYZ(float*, int); +extern uint32 LogLuv32fromXYZ(float*, int); +#endif +#endif /* LOGLUV_PUBLIC */ + +extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, TIFFDisplay *, float*); +extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32, + float *, float *, float *); +extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float, + uint32 *, uint32 *, uint32 *); + +extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*); +extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32, + uint32 *, uint32 *, uint32 *); + +#if defined(c_plusplus) || defined(__cplusplus) +} +#endif + +#endif /* _TIFFIO_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiffio.hxx b/tiff/libtiff/tiffio.hxx new file mode 100644 index 0000000..ee3fd32 --- /dev/null +++ b/tiff/libtiff/tiffio.hxx @@ -0,0 +1,49 @@ +/* $Id: tiffio.hxx,v 1.1.2.1 2010-06-08 18:50:43 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _TIFFIO_HXX_ +#define _TIFFIO_HXX_ + +/* + * TIFF I/O library definitions which provide C++ streams API. + */ + +#include <iostream> +#include "tiff.h" + +extern TIFF* TIFFStreamOpen(const char*, std::ostream *); +extern TIFF* TIFFStreamOpen(const char*, std::istream *); + +#endif /* _TIFFIO_HXX_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c++ + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiffiop.h b/tiff/libtiff/tiffiop.h new file mode 100644 index 0000000..a064039 --- /dev/null +++ b/tiff/libtiff/tiffiop.h @@ -0,0 +1,350 @@ +/* $Id: tiffiop.h,v 1.51.2.6 2010-06-12 02:55:16 bfriesen Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _TIFFIOP_ +#define _TIFFIOP_ +/* + * ``Library-private'' definitions. + */ + +#include "tif_config.h" + +#ifdef HAVE_FCNTL_H +# include <fcntl.h> +#endif + +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif + +#ifdef HAVE_STRING_H +# include <string.h> +#endif + +#ifdef HAVE_ASSERT_H +# include <assert.h> +#else +# define assert(x) +#endif + +#ifdef HAVE_SEARCH_H +# include <search.h> +#else +extern void *lfind(const void *, const void *, size_t *, size_t, + int (*)(const void *, const void *)); +#endif + +/* + Libtiff itself does not require a 64-bit type, but bundled TIFF + utilities may use it. +*/ +typedef TIFF_INT64_T int64; +typedef TIFF_UINT64_T uint64; + +#include "tiffio.h" +#include "tif_dir.h" + +#ifndef STRIP_SIZE_DEFAULT +# define STRIP_SIZE_DEFAULT 8192 +#endif + +#define streq(a,b) (strcmp(a,b) == 0) + +#ifndef TRUE +#define TRUE 1 +#define FALSE 0 +#endif + +typedef struct client_info { + struct client_info *next; + void *data; + char *name; +} TIFFClientInfoLink; + +/* + * Typedefs for ``method pointers'' used internally. + */ +typedef unsigned char tidataval_t; /* internal image data value type */ +typedef tidataval_t* tidata_t; /* reference to internal image data */ + +typedef void (*TIFFVoidMethod)(TIFF*); +typedef int (*TIFFBoolMethod)(TIFF*); +typedef int (*TIFFPreMethod)(TIFF*, tsample_t); +typedef int (*TIFFCodeMethod)(TIFF*, tidata_t, tsize_t, tsample_t); +typedef int (*TIFFSeekMethod)(TIFF*, uint32); +typedef void (*TIFFPostMethod)(TIFF*, tidata_t, tsize_t); +typedef uint32 (*TIFFStripMethod)(TIFF*, uint32); +typedef void (*TIFFTileMethod)(TIFF*, uint32*, uint32*); + +struct tiff { + char* tif_name; /* name of open file */ + int tif_fd; /* open file descriptor */ + int tif_mode; /* open mode (O_*) */ + uint32 tif_flags; +#define TIFF_FILLORDER 0x00003 /* natural bit fill order for machine */ +#define TIFF_DIRTYHEADER 0x00004 /* header must be written on close */ +#define TIFF_DIRTYDIRECT 0x00008 /* current directory must be written */ +#define TIFF_BUFFERSETUP 0x00010 /* data buffers setup */ +#define TIFF_CODERSETUP 0x00020 /* encoder/decoder setup done */ +#define TIFF_BEENWRITING 0x00040 /* written 1+ scanlines to file */ +#define TIFF_SWAB 0x00080 /* byte swap file information */ +#define TIFF_NOBITREV 0x00100 /* inhibit bit reversal logic */ +#define TIFF_MYBUFFER 0x00200 /* my raw data buffer; free on close */ +#define TIFF_ISTILED 0x00400 /* file is tile, not strip- based */ +#define TIFF_MAPPED 0x00800 /* file is mapped into memory */ +#define TIFF_POSTENCODE 0x01000 /* need call to postencode routine */ +#define TIFF_INSUBIFD 0x02000 /* currently writing a subifd */ +#define TIFF_UPSAMPLED 0x04000 /* library is doing data up-sampling */ +#define TIFF_STRIPCHOP 0x08000 /* enable strip chopping support */ +#define TIFF_HEADERONLY 0x10000 /* read header only, do not process */ + /* the first directory */ +#define TIFF_NOREADRAW 0x20000 /* skip reading of raw uncompressed */ + /* image data */ +#define TIFF_INCUSTOMIFD 0x40000 /* currently writing a custom IFD */ + toff_t tif_diroff; /* file offset of current directory */ + toff_t tif_nextdiroff; /* file offset of following directory */ + toff_t* tif_dirlist; /* list of offsets to already seen */ + /* directories to prevent IFD looping */ + tsize_t tif_dirlistsize;/* number of entires in offset list */ + uint16 tif_dirnumber; /* number of already seen directories */ + TIFFDirectory tif_dir; /* internal rep of current directory */ + TIFFDirectory tif_customdir; /* custom IFDs are separated from + the main ones */ + TIFFHeader tif_header; /* file's header block */ + const int* tif_typeshift; /* data type shift counts */ + const long* tif_typemask; /* data type masks */ + uint32 tif_row; /* current scanline */ + tdir_t tif_curdir; /* current directory (index) */ + tstrip_t tif_curstrip; /* current strip for read/write */ + toff_t tif_curoff; /* current offset for read/write */ + toff_t tif_dataoff; /* current offset for writing dir */ +/* SubIFD support */ + uint16 tif_nsubifd; /* remaining subifds to write */ + toff_t tif_subifdoff; /* offset for patching SubIFD link */ +/* tiling support */ + uint32 tif_col; /* current column (offset by row too) */ + ttile_t tif_curtile; /* current tile for read/write */ + tsize_t tif_tilesize; /* # of bytes in a tile */ +/* compression scheme hooks */ + int tif_decodestatus; + TIFFBoolMethod tif_setupdecode;/* called once before predecode */ + TIFFPreMethod tif_predecode; /* pre- row/strip/tile decoding */ + TIFFBoolMethod tif_setupencode;/* called once before preencode */ + int tif_encodestatus; + TIFFPreMethod tif_preencode; /* pre- row/strip/tile encoding */ + TIFFBoolMethod tif_postencode; /* post- row/strip/tile encoding */ + TIFFCodeMethod tif_decoderow; /* scanline decoding routine */ + TIFFCodeMethod tif_encoderow; /* scanline encoding routine */ + TIFFCodeMethod tif_decodestrip;/* strip decoding routine */ + TIFFCodeMethod tif_encodestrip;/* strip encoding routine */ + TIFFCodeMethod tif_decodetile; /* tile decoding routine */ + TIFFCodeMethod tif_encodetile; /* tile encoding routine */ + TIFFVoidMethod tif_close; /* cleanup-on-close routine */ + TIFFSeekMethod tif_seek; /* position within a strip routine */ + TIFFVoidMethod tif_cleanup; /* cleanup state routine */ + TIFFStripMethod tif_defstripsize;/* calculate/constrain strip size */ + TIFFTileMethod tif_deftilesize;/* calculate/constrain tile size */ + tidata_t tif_data; /* compression scheme private data */ +/* input/output buffering */ + tsize_t tif_scanlinesize;/* # of bytes in a scanline */ + tsize_t tif_scanlineskew;/* scanline skew for reading strips */ + tidata_t tif_rawdata; /* raw data buffer */ + tsize_t tif_rawdatasize;/* # of bytes in raw data buffer */ + tidata_t tif_rawcp; /* current spot in raw buffer */ + tsize_t tif_rawcc; /* bytes unread from raw buffer */ +/* memory-mapped file support */ + tidata_t tif_base; /* base of mapped file */ + toff_t tif_size; /* size of mapped file region (bytes) + FIXME: it should be tsize_t */ + TIFFMapFileProc tif_mapproc; /* map file method */ + TIFFUnmapFileProc tif_unmapproc;/* unmap file method */ +/* input/output callback methods */ + thandle_t tif_clientdata; /* callback parameter */ + TIFFReadWriteProc tif_readproc; /* read method */ + TIFFReadWriteProc tif_writeproc;/* write method */ + TIFFSeekProc tif_seekproc; /* lseek method */ + TIFFCloseProc tif_closeproc; /* close method */ + TIFFSizeProc tif_sizeproc; /* filesize method */ +/* post-decoding support */ + TIFFPostMethod tif_postdecode; /* post decoding routine */ +/* tag support */ + TIFFFieldInfo** tif_fieldinfo; /* sorted table of registered tags */ + size_t tif_nfields; /* # entries in registered tag table */ + const TIFFFieldInfo *tif_foundfield;/* cached pointer to already found tag */ + TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */ + TIFFClientInfoLink *tif_clientinfo; /* extra client information. */ +}; + +#define isPseudoTag(t) (t > 0xffff) /* is tag value normal or pseudo */ + +#define isTiled(tif) (((tif)->tif_flags & TIFF_ISTILED) != 0) +#define isMapped(tif) (((tif)->tif_flags & TIFF_MAPPED) != 0) +#define isFillOrder(tif, o) (((tif)->tif_flags & (o)) != 0) +#define isUpSampled(tif) (((tif)->tif_flags & TIFF_UPSAMPLED) != 0) +#define TIFFReadFile(tif, buf, size) \ + ((*(tif)->tif_readproc)((tif)->tif_clientdata,buf,size)) +#define TIFFWriteFile(tif, buf, size) \ + ((*(tif)->tif_writeproc)((tif)->tif_clientdata,buf,size)) +#define TIFFSeekFile(tif, off, whence) \ + ((*(tif)->tif_seekproc)((tif)->tif_clientdata,(toff_t)(off),whence)) +#define TIFFCloseFile(tif) \ + ((*(tif)->tif_closeproc)((tif)->tif_clientdata)) +#define TIFFGetFileSize(tif) \ + ((*(tif)->tif_sizeproc)((tif)->tif_clientdata)) +#define TIFFMapFileContents(tif, paddr, psize) \ + ((*(tif)->tif_mapproc)((tif)->tif_clientdata,paddr,psize)) +#define TIFFUnmapFileContents(tif, addr, size) \ + ((*(tif)->tif_unmapproc)((tif)->tif_clientdata,addr,size)) + +/* + * Default Read/Seek/Write definitions. + */ +#ifndef ReadOK +#define ReadOK(tif, buf, size) \ + (TIFFReadFile(tif, (tdata_t) buf, (tsize_t)(size)) == (tsize_t)(size)) +#endif +#ifndef SeekOK +#define SeekOK(tif, off) \ + (TIFFSeekFile(tif, (toff_t) off, SEEK_SET) == (toff_t) off) +#endif +#ifndef WriteOK +#define WriteOK(tif, buf, size) \ + (TIFFWriteFile(tif, (tdata_t) buf, (tsize_t) size) == (tsize_t) size) +#endif + +/* NB: the uint32 casts are to silence certain ANSI-C compilers */ +#define TIFFhowmany(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \ + ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \ + 0U) +#define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) +#define TIFFroundup(x, y) (TIFFhowmany(x,y)*(y)) + +/* Safe multiply which returns zero if there is an integer overflow */ +#define TIFFSafeMultiply(t,v,m) ((((t)m != (t)0) && (((t)((v*m)/m)) == (t)v)) ? (t)(v*m) : (t)0) + +#define TIFFmax(A,B) ((A)>(B)?(A):(B)) +#define TIFFmin(A,B) ((A)<(B)?(A):(B)) + +#define TIFFArrayCount(a) (sizeof (a) / sizeof ((a)[0])) + +#if defined(__cplusplus) +extern "C" { +#endif +extern int _TIFFgetMode(const char*, const char*); +extern int _TIFFNoRowEncode(TIFF*, tidata_t, tsize_t, tsample_t); +extern int _TIFFNoStripEncode(TIFF*, tidata_t, tsize_t, tsample_t); +extern int _TIFFNoTileEncode(TIFF*, tidata_t, tsize_t, tsample_t); +extern int _TIFFNoRowDecode(TIFF*, tidata_t, tsize_t, tsample_t); +extern int _TIFFNoStripDecode(TIFF*, tidata_t, tsize_t, tsample_t); +extern int _TIFFNoTileDecode(TIFF*, tidata_t, tsize_t, tsample_t); +extern void _TIFFNoPostDecode(TIFF*, tidata_t, tsize_t); +extern int _TIFFNoPreCode (TIFF*, tsample_t); +extern int _TIFFNoSeek(TIFF*, uint32); +extern void _TIFFSwab16BitData(TIFF*, tidata_t, tsize_t); +extern void _TIFFSwab24BitData(TIFF*, tidata_t, tsize_t); +extern void _TIFFSwab32BitData(TIFF*, tidata_t, tsize_t); +extern void _TIFFSwab64BitData(TIFF*, tidata_t, tsize_t); +extern int TIFFFlushData1(TIFF*); +extern int TIFFDefaultDirectory(TIFF*); +extern void _TIFFSetDefaultCompressionState(TIFF*); +extern int TIFFSetCompressionScheme(TIFF*, int); +extern int TIFFSetDefaultCompressionState(TIFF*); +extern uint32 _TIFFDefaultStripSize(TIFF*, uint32); +extern void _TIFFDefaultTileSize(TIFF*, uint32*, uint32*); +extern int _TIFFDataSize(TIFFDataType); + +extern void _TIFFsetByteArray(void**, void*, uint32); +extern void _TIFFsetString(char**, char*); +extern void _TIFFsetShortArray(uint16**, uint16*, uint32); +extern void _TIFFsetLongArray(uint32**, uint32*, uint32); +extern void _TIFFsetFloatArray(float**, float*, uint32); +extern void _TIFFsetDoubleArray(double**, double*, uint32); + +extern void _TIFFprintAscii(FILE*, const char*); +extern void _TIFFprintAsciiTag(FILE*, const char*, const char*); + +extern TIFFErrorHandler _TIFFwarningHandler; +extern TIFFErrorHandler _TIFFerrorHandler; +extern TIFFErrorHandlerExt _TIFFwarningHandlerExt; +extern TIFFErrorHandlerExt _TIFFerrorHandlerExt; + +extern tdata_t _TIFFCheckMalloc(TIFF*, size_t, size_t, const char*); +extern tdata_t _TIFFCheckRealloc(TIFF*, tdata_t, size_t, size_t, const char*); + +extern int TIFFInitDumpMode(TIFF*, int); +#ifdef PACKBITS_SUPPORT +extern int TIFFInitPackBits(TIFF*, int); +#endif +#ifdef CCITT_SUPPORT +extern int TIFFInitCCITTRLE(TIFF*, int), TIFFInitCCITTRLEW(TIFF*, int); +extern int TIFFInitCCITTFax3(TIFF*, int), TIFFInitCCITTFax4(TIFF*, int); +#endif +#ifdef THUNDER_SUPPORT +extern int TIFFInitThunderScan(TIFF*, int); +#endif +#ifdef NEXT_SUPPORT +extern int TIFFInitNeXT(TIFF*, int); +#endif +#ifdef LZW_SUPPORT +extern int TIFFInitLZW(TIFF*, int); +#endif +#ifdef OJPEG_SUPPORT +extern int TIFFInitOJPEG(TIFF*, int); +#endif +#ifdef JPEG_SUPPORT +extern int TIFFInitJPEG(TIFF*, int); +#endif +#ifdef JBIG_SUPPORT +extern int TIFFInitJBIG(TIFF*, int); +#endif +#ifdef ZIP_SUPPORT +extern int TIFFInitZIP(TIFF*, int); +#endif +#ifdef PIXARLOG_SUPPORT +extern int TIFFInitPixarLog(TIFF*, int); +#endif +#ifdef LOGLUV_SUPPORT +extern int TIFFInitSGILog(TIFF*, int); +#endif +#ifdef VMS +extern const TIFFCodec _TIFFBuiltinCODECS[]; +#else +extern TIFFCodec _TIFFBuiltinCODECS[]; +#endif + +#if defined(__cplusplus) +} +#endif +#endif /* _TIFFIOP_ */ + +/* vim: set ts=8 sts=8 sw=8 noet: */ +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ diff --git a/tiff/libtiff/tiffvers.h b/tiff/libtiff/tiffvers.h new file mode 100644 index 0000000..314a22a --- /dev/null +++ b/tiff/libtiff/tiffvers.h @@ -0,0 +1,9 @@ +#define TIFFLIB_VERSION_STR "LIBTIFF, Version 3.9.4\nCopyright (c) 1988-1996 Sam Leffler\nCopyright (c) 1991-1996 Silicon Graphics, Inc." +/* + * This define can be used in code that requires + * compilation-related definitions specific to a + * version or versions of the library. Runtime + * version checking should be done based on the + * string returned by TIFFGetVersion. + */ +#define TIFFLIB_VERSION 20100615 diff --git a/tiff/libtiff/uvcode.h b/tiff/libtiff/uvcode.h new file mode 100644 index 0000000..50f11d7 --- /dev/null +++ b/tiff/libtiff/uvcode.h @@ -0,0 +1,180 @@ +/* Version 1.0 generated April 7, 1997 by Greg Ward Larson, SGI */ +#define UV_SQSIZ (float)0.003500 +#define UV_NDIVS 16289 +#define UV_VSTART (float)0.016940 +#define UV_NVS 163 +static struct { + float ustart; + short nus, ncum; +} uv_row[UV_NVS] = { + { (float)0.247663, 4, 0 }, + { (float)0.243779, 6, 4 }, + { (float)0.241684, 7, 10 }, + { (float)0.237874, 9, 17 }, + { (float)0.235906, 10, 26 }, + { (float)0.232153, 12, 36 }, + { (float)0.228352, 14, 48 }, + { (float)0.226259, 15, 62 }, + { (float)0.222371, 17, 77 }, + { (float)0.220410, 18, 94 }, + { (float)0.214710, 21, 112 }, + { (float)0.212714, 22, 133 }, + { (float)0.210721, 23, 155 }, + { (float)0.204976, 26, 178 }, + { (float)0.202986, 27, 204 }, + { (float)0.199245, 29, 231 }, + { (float)0.195525, 31, 260 }, + { (float)0.193560, 32, 291 }, + { (float)0.189878, 34, 323 }, + { (float)0.186216, 36, 357 }, + { (float)0.186216, 36, 393 }, + { (float)0.182592, 38, 429 }, + { (float)0.179003, 40, 467 }, + { (float)0.175466, 42, 507 }, + { (float)0.172001, 44, 549 }, + { (float)0.172001, 44, 593 }, + { (float)0.168612, 46, 637 }, + { (float)0.168612, 46, 683 }, + { (float)0.163575, 49, 729 }, + { (float)0.158642, 52, 778 }, + { (float)0.158642, 52, 830 }, + { (float)0.158642, 52, 882 }, + { (float)0.153815, 55, 934 }, + { (float)0.153815, 55, 989 }, + { (float)0.149097, 58, 1044 }, + { (float)0.149097, 58, 1102 }, + { (float)0.142746, 62, 1160 }, + { (float)0.142746, 62, 1222 }, + { (float)0.142746, 62, 1284 }, + { (float)0.138270, 65, 1346 }, + { (float)0.138270, 65, 1411 }, + { (float)0.138270, 65, 1476 }, + { (float)0.132166, 69, 1541 }, + { (float)0.132166, 69, 1610 }, + { (float)0.126204, 73, 1679 }, + { (float)0.126204, 73, 1752 }, + { (float)0.126204, 73, 1825 }, + { (float)0.120381, 77, 1898 }, + { (float)0.120381, 77, 1975 }, + { (float)0.120381, 77, 2052 }, + { (float)0.120381, 77, 2129 }, + { (float)0.112962, 82, 2206 }, + { (float)0.112962, 82, 2288 }, + { (float)0.112962, 82, 2370 }, + { (float)0.107450, 86, 2452 }, + { (float)0.107450, 86, 2538 }, + { (float)0.107450, 86, 2624 }, + { (float)0.107450, 86, 2710 }, + { (float)0.100343, 91, 2796 }, + { (float)0.100343, 91, 2887 }, + { (float)0.100343, 91, 2978 }, + { (float)0.095126, 95, 3069 }, + { (float)0.095126, 95, 3164 }, + { (float)0.095126, 95, 3259 }, + { (float)0.095126, 95, 3354 }, + { (float)0.088276, 100, 3449 }, + { (float)0.088276, 100, 3549 }, + { (float)0.088276, 100, 3649 }, + { (float)0.088276, 100, 3749 }, + { (float)0.081523, 105, 3849 }, + { (float)0.081523, 105, 3954 }, + { (float)0.081523, 105, 4059 }, + { (float)0.081523, 105, 4164 }, + { (float)0.074861, 110, 4269 }, + { (float)0.074861, 110, 4379 }, + { (float)0.074861, 110, 4489 }, + { (float)0.074861, 110, 4599 }, + { (float)0.068290, 115, 4709 }, + { (float)0.068290, 115, 4824 }, + { (float)0.068290, 115, 4939 }, + { (float)0.068290, 115, 5054 }, + { (float)0.063573, 119, 5169 }, + { (float)0.063573, 119, 5288 }, + { (float)0.063573, 119, 5407 }, + { (float)0.063573, 119, 5526 }, + { (float)0.057219, 124, 5645 }, + { (float)0.057219, 124, 5769 }, + { (float)0.057219, 124, 5893 }, + { (float)0.057219, 124, 6017 }, + { (float)0.050985, 129, 6141 }, + { (float)0.050985, 129, 6270 }, + { (float)0.050985, 129, 6399 }, + { (float)0.050985, 129, 6528 }, + { (float)0.050985, 129, 6657 }, + { (float)0.044859, 134, 6786 }, + { (float)0.044859, 134, 6920 }, + { (float)0.044859, 134, 7054 }, + { (float)0.044859, 134, 7188 }, + { (float)0.040571, 138, 7322 }, + { (float)0.040571, 138, 7460 }, + { (float)0.040571, 138, 7598 }, + { (float)0.040571, 138, 7736 }, + { (float)0.036339, 142, 7874 }, + { (float)0.036339, 142, 8016 }, + { (float)0.036339, 142, 8158 }, + { (float)0.036339, 142, 8300 }, + { (float)0.032139, 146, 8442 }, + { (float)0.032139, 146, 8588 }, + { (float)0.032139, 146, 8734 }, + { (float)0.032139, 146, 8880 }, + { (float)0.027947, 150, 9026 }, + { (float)0.027947, 150, 9176 }, + { (float)0.027947, 150, 9326 }, + { (float)0.023739, 154, 9476 }, + { (float)0.023739, 154, 9630 }, + { (float)0.023739, 154, 9784 }, + { (float)0.023739, 154, 9938 }, + { (float)0.019504, 158, 10092 }, + { (float)0.019504, 158, 10250 }, + { (float)0.019504, 158, 10408 }, + { (float)0.016976, 161, 10566 }, + { (float)0.016976, 161, 10727 }, + { (float)0.016976, 161, 10888 }, + { (float)0.016976, 161, 11049 }, + { (float)0.012639, 165, 11210 }, + { (float)0.012639, 165, 11375 }, + { (float)0.012639, 165, 11540 }, + { (float)0.009991, 168, 11705 }, + { (float)0.009991, 168, 11873 }, + { (float)0.009991, 168, 12041 }, + { (float)0.009016, 170, 12209 }, + { (float)0.009016, 170, 12379 }, + { (float)0.009016, 170, 12549 }, + 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